diff --git a/services/track-changes/Makefile b/services/track-changes/Makefile
index b28f960b01..6fb3b47b4f 100644
--- a/services/track-changes/Makefile
+++ b/services/track-changes/Makefile
@@ -1,7 +1,7 @@
 # This file was auto-generated, do not edit it directly.
 # Instead run bin/update_build_scripts from
 # https://github.com/sharelatex/sharelatex-dev-environment
-# Version: 1.1.12
+# Version: 1.1.21
 
 BUILD_NUMBER ?= local
 BRANCH_NAME ?= $(shell git rev-parse --abbrev-ref HEAD)
@@ -29,7 +29,9 @@ test: test_unit test_acceptance
 test_unit:
 	@[ ! -d test/unit ] && echo "track-changes has no unit tests" || $(DOCKER_COMPOSE) run --rm test_unit
 
-test_acceptance: test_clean test_acceptance_pre_run # clear the database before each acceptance test run
+test_acceptance: test_clean test_acceptance_pre_run test_acceptance_run
+
+test_acceptance_run:
 	@[ ! -d test/acceptance ] && echo "track-changes has no acceptance tests" || $(DOCKER_COMPOSE) run --rm test_acceptance
 
 test_clean:
diff --git a/services/track-changes/buildscript.txt b/services/track-changes/buildscript.txt
index 0822059ef0..80e4a36482 100644
--- a/services/track-changes/buildscript.txt
+++ b/services/track-changes/buildscript.txt
@@ -5,4 +5,4 @@ track-changes
 --dependencies=mongo,redis
 --docker-repos=gcr.io/overleaf-ops
 --build-target=docker
---script-version=1.1.12
+--script-version=1.1.21
diff --git a/services/track-changes/docker-compose.ci.yml b/services/track-changes/docker-compose.ci.yml
index e05433ac79..baac7bccae 100644
--- a/services/track-changes/docker-compose.ci.yml
+++ b/services/track-changes/docker-compose.ci.yml
@@ -1,7 +1,7 @@
 # This file was auto-generated, do not edit it directly.
 # Instead run bin/update_build_scripts from
 # https://github.com/sharelatex/sharelatex-dev-environment
-# Version: 1.1.12
+# Version: 1.1.21
 
 version: "2"
 
@@ -10,6 +10,8 @@ services:
     image: ci/$PROJECT_NAME:$BRANCH_NAME-$BUILD_NUMBER
     user: node
     command: npm run test:unit:_run
+    environment:
+      NODE_ENV: test
 
 
   test_acceptance:
@@ -24,6 +26,7 @@ services:
       AWS_SECRET_ACCESS_KEY: ${AWS_SECRET_ACCESS_KEY}
       AWS_BUCKET: ${AWS_BUCKET}
       MOCHA_GREP: ${MOCHA_GREP}
+      NODE_ENV: test
     depends_on:
       - mongo
       - redis
diff --git a/services/track-changes/docker-compose.yml b/services/track-changes/docker-compose.yml
index e7b4d4e6d4..18fa7aed5e 100644
--- a/services/track-changes/docker-compose.yml
+++ b/services/track-changes/docker-compose.yml
@@ -1,18 +1,19 @@
 # This file was auto-generated, do not edit it directly.
 # Instead run bin/update_build_scripts from
 # https://github.com/sharelatex/sharelatex-dev-environment
-# Version: 1.1.12
+# Version: 1.1.21
 
 version: "2"
 
 services:
   test_unit:
-    build: .
+    image: node:6.11.2
     volumes:
       - .:/app
     working_dir: /app
     environment:
       MOCHA_GREP: ${MOCHA_GREP}
+      NODE_ENV: test
     command: npm run test:unit
     user: node
 
@@ -30,6 +31,8 @@ services:
       AWS_SECRET_ACCESS_KEY: ${AWS_SECRET_ACCESS_KEY}
       AWS_BUCKET: ${AWS_BUCKET}
       MOCHA_GREP: ${MOCHA_GREP}
+      LOG_LEVEL: ERROR
+      NODE_ENV: test
     user: node
     depends_on:
       - mongo
@@ -52,3 +55,4 @@ services:
   mongo:
     image: mongo:3.4
 
+
diff --git a/services/track-changes/npm-shrinkwrap.json b/services/track-changes/npm-shrinkwrap.json
index 0454eae6b4..348128696c 100644
--- a/services/track-changes/npm-shrinkwrap.json
+++ b/services/track-changes/npm-shrinkwrap.json
@@ -3,19 +3,24 @@
   "version": "0.1.4",
   "dependencies": {
     "@google-cloud/common": {
-      "version": "0.27.0",
-      "from": "@google-cloud/common@>=0.27.0 <0.28.0",
-      "resolved": "https://registry.npmjs.org/@google-cloud/common/-/common-0.27.0.tgz"
+      "version": "0.32.1",
+      "from": "@google-cloud/common@>=0.32.0 <0.33.0",
+      "resolved": "https://registry.npmjs.org/@google-cloud/common/-/common-0.32.1.tgz"
     },
     "@google-cloud/debug-agent": {
-      "version": "3.0.1",
+      "version": "3.2.0",
       "from": "@google-cloud/debug-agent@>=3.0.0 <4.0.0",
-      "resolved": "https://registry.npmjs.org/@google-cloud/debug-agent/-/debug-agent-3.0.1.tgz",
+      "resolved": "https://registry.npmjs.org/@google-cloud/debug-agent/-/debug-agent-3.2.0.tgz",
       "dependencies": {
         "coffeescript": {
-          "version": "2.3.2",
+          "version": "2.4.1",
           "from": "coffeescript@>=2.0.0 <3.0.0",
-          "resolved": "https://registry.npmjs.org/coffeescript/-/coffeescript-2.3.2.tgz"
+          "resolved": "https://registry.npmjs.org/coffeescript/-/coffeescript-2.4.1.tgz"
+        },
+        "semver": {
+          "version": "6.1.1",
+          "from": "semver@>=6.0.0 <7.0.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.1.1.tgz"
         }
       }
     },
@@ -29,37 +34,69 @@
           "from": "@google-cloud/common@>=0.26.0 <0.27.0",
           "resolved": "https://registry.npmjs.org/@google-cloud/common/-/common-0.26.2.tgz"
         },
+        "@google-cloud/promisify": {
+          "version": "0.3.1",
+          "from": "@google-cloud/promisify@>=0.3.0 <0.4.0",
+          "resolved": "https://registry.npmjs.org/@google-cloud/promisify/-/promisify-0.3.1.tgz"
+        },
+        "arrify": {
+          "version": "1.0.1",
+          "from": "arrify@>=1.0.1 <2.0.0",
+          "resolved": "https://registry.npmjs.org/arrify/-/arrify-1.0.1.tgz"
+        },
+        "gcp-metadata": {
+          "version": "0.9.3",
+          "from": "gcp-metadata@>=0.9.0 <0.10.0",
+          "resolved": "https://registry.npmjs.org/gcp-metadata/-/gcp-metadata-0.9.3.tgz"
+        },
+        "google-auth-library": {
+          "version": "2.0.2",
+          "from": "google-auth-library@>=2.0.0 <3.0.0",
+          "resolved": "https://registry.npmjs.org/google-auth-library/-/google-auth-library-2.0.2.tgz",
+          "dependencies": {
+            "gcp-metadata": {
+              "version": "0.7.0",
+              "from": "gcp-metadata@>=0.7.0 <0.8.0",
+              "resolved": "https://registry.npmjs.org/gcp-metadata/-/gcp-metadata-0.7.0.tgz"
+            }
+          }
+        },
+        "lru-cache": {
+          "version": "5.1.1",
+          "from": "lru-cache@^5.0.0",
+          "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-5.1.1.tgz"
+        },
         "through2": {
-          "version": "3.0.0",
+          "version": "3.0.1",
           "from": "through2@>=3.0.0 <4.0.0",
-          "resolved": "https://registry.npmjs.org/through2/-/through2-3.0.0.tgz"
+          "resolved": "https://registry.npmjs.org/through2/-/through2-3.0.1.tgz"
         }
       }
     },
     "@google-cloud/projectify": {
-      "version": "0.3.2",
-      "from": "@google-cloud/projectify@>=0.3.2 <0.4.0",
-      "resolved": "https://registry.npmjs.org/@google-cloud/projectify/-/projectify-0.3.2.tgz"
+      "version": "0.3.3",
+      "from": "@google-cloud/projectify@>=0.3.3 <0.4.0",
+      "resolved": "https://registry.npmjs.org/@google-cloud/projectify/-/projectify-0.3.3.tgz"
     },
     "@google-cloud/promisify": {
-      "version": "0.3.1",
-      "from": "@google-cloud/promisify@>=0.3.0 <0.4.0",
-      "resolved": "https://registry.npmjs.org/@google-cloud/promisify/-/promisify-0.3.1.tgz"
+      "version": "0.4.0",
+      "from": "@google-cloud/promisify@>=0.4.0 <0.5.0",
+      "resolved": "https://registry.npmjs.org/@google-cloud/promisify/-/promisify-0.4.0.tgz"
     },
     "@google-cloud/trace-agent": {
-      "version": "3.5.0",
+      "version": "3.6.1",
       "from": "@google-cloud/trace-agent@>=3.2.0 <4.0.0",
-      "resolved": "https://registry.npmjs.org/@google-cloud/trace-agent/-/trace-agent-3.5.0.tgz",
+      "resolved": "https://registry.npmjs.org/@google-cloud/trace-agent/-/trace-agent-3.6.1.tgz",
       "dependencies": {
-        "@google-cloud/common": {
-          "version": "0.28.0",
-          "from": "@google-cloud/common@>=0.28.0 <0.29.0",
-          "resolved": "https://registry.npmjs.org/@google-cloud/common/-/common-0.28.0.tgz"
-        },
         "methods": {
           "version": "1.1.2",
           "from": "methods@>=1.1.1 <2.0.0",
           "resolved": "https://registry.npmjs.org/methods/-/methods-1.1.2.tgz"
+        },
+        "semver": {
+          "version": "6.1.1",
+          "from": "semver@^6.0.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.1.1.tgz"
         }
       }
     },
@@ -114,14 +151,38 @@
       "resolved": "https://registry.npmjs.org/@protobufjs/utf8/-/utf8-1.1.0.tgz"
     },
     "@sindresorhus/is": {
-      "version": "0.13.0",
-      "from": "@sindresorhus/is@>=0.13.0 <0.14.0",
-      "resolved": "https://registry.npmjs.org/@sindresorhus/is/-/is-0.13.0.tgz"
+      "version": "0.15.0",
+      "from": "@sindresorhus/is@>=0.15.0 <0.16.0",
+      "resolved": "https://registry.npmjs.org/@sindresorhus/is/-/is-0.15.0.tgz"
+    },
+    "@sinonjs/commons": {
+      "version": "1.4.0",
+      "from": "@sinonjs/commons@>=1.0.0 <2.0.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-1.4.0.tgz",
+      "dev": true
+    },
+    "@sinonjs/formatio": {
+      "version": "3.2.1",
+      "from": "@sinonjs/formatio@>=3.1.0 <4.0.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/formatio/-/formatio-3.2.1.tgz",
+      "dev": true
+    },
+    "@sinonjs/samsam": {
+      "version": "3.3.2",
+      "from": "@sinonjs/samsam@>=3.1.0 <4.0.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-3.3.2.tgz",
+      "dev": true
+    },
+    "@sinonjs/text-encoding": {
+      "version": "0.7.1",
+      "from": "@sinonjs/text-encoding@>=0.7.1 <0.8.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/text-encoding/-/text-encoding-0.7.1.tgz",
+      "dev": true
     },
     "@types/caseless": {
-      "version": "0.12.1",
+      "version": "0.12.2",
       "from": "@types/caseless@*",
-      "resolved": "https://registry.npmjs.org/@types/caseless/-/caseless-0.12.1.tgz"
+      "resolved": "https://registry.npmjs.org/@types/caseless/-/caseless-0.12.2.tgz"
     },
     "@types/console-log-level": {
       "version": "1.4.0",
@@ -144,9 +205,9 @@
       "resolved": "https://registry.npmjs.org/@types/long/-/long-4.0.0.tgz"
     },
     "@types/node": {
-      "version": "10.12.18",
+      "version": "12.0.8",
       "from": "@types/node@*",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-10.12.18.tgz"
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-12.0.8.tgz"
     },
     "@types/request": {
       "version": "2.48.1",
@@ -159,24 +220,29 @@
       "resolved": "https://registry.npmjs.org/@types/semver/-/semver-5.5.0.tgz"
     },
     "@types/tough-cookie": {
-      "version": "2.3.4",
+      "version": "2.3.5",
       "from": "@types/tough-cookie@*",
-      "resolved": "https://registry.npmjs.org/@types/tough-cookie/-/tough-cookie-2.3.4.tgz"
+      "resolved": "https://registry.npmjs.org/@types/tough-cookie/-/tough-cookie-2.3.5.tgz"
     },
     "abbrev": {
       "version": "1.1.1",
       "from": "abbrev@>=1.0.0 <2.0.0",
       "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz"
     },
+    "abort-controller": {
+      "version": "3.0.0",
+      "from": "abort-controller@>=3.0.0 <4.0.0",
+      "resolved": "https://registry.npmjs.org/abort-controller/-/abort-controller-3.0.0.tgz"
+    },
     "acorn": {
-      "version": "5.7.3",
-      "from": "acorn@>=5.0.3 <6.0.0",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz"
+      "version": "6.1.1",
+      "from": "acorn@>=6.0.0 <7.0.0",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.1.1.tgz"
     },
     "agent-base": {
-      "version": "4.2.1",
+      "version": "4.3.0",
       "from": "agent-base@>=4.1.0 <5.0.0",
-      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.2.1.tgz"
+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.3.0.tgz"
     },
     "ajv": {
       "version": "6.6.2",
@@ -193,10 +259,16 @@
       "from": "are-we-there-yet@>=1.1.2 <1.2.0",
       "resolved": "https://registry.npmjs.org/are-we-there-yet/-/are-we-there-yet-1.1.5.tgz"
     },
+    "array-from": {
+      "version": "2.1.1",
+      "from": "array-from@>=2.1.1 <3.0.0",
+      "resolved": "https://registry.npmjs.org/array-from/-/array-from-2.1.1.tgz",
+      "dev": true
+    },
     "arrify": {
-      "version": "1.0.1",
-      "from": "arrify@>=1.0.1 <2.0.0",
-      "resolved": "https://registry.npmjs.org/arrify/-/arrify-1.0.1.tgz"
+      "version": "2.0.1",
+      "from": "arrify@>=2.0.0 <3.0.0",
+      "resolved": "https://registry.npmjs.org/arrify/-/arrify-2.0.1.tgz"
     },
     "asn1": {
       "version": "0.1.11",
@@ -210,6 +282,12 @@
       "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-0.1.5.tgz",
       "optional": true
     },
+    "assertion-error": {
+      "version": "1.1.0",
+      "from": "assertion-error@>=1.0.1 <2.0.0",
+      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-1.1.0.tgz",
+      "dev": true
+    },
     "async": {
       "version": "0.2.10",
       "from": "async@>=0.2.10 <0.3.0",
@@ -242,9 +320,9 @@
       "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.8.0.tgz"
     },
     "axios": {
-      "version": "0.18.0",
+      "version": "0.18.1",
       "from": "axios@>=0.18.0 <0.19.0",
-      "resolved": "http://registry.npmjs.org/axios/-/axios-0.18.0.tgz"
+      "resolved": "https://registry.npmjs.org/axios/-/axios-0.18.1.tgz"
     },
     "balanced-match": {
       "version": "1.0.0",
@@ -267,9 +345,9 @@
       "resolved": "https://registry.npmjs.org/bignumber.js/-/bignumber.js-7.2.1.tgz"
     },
     "bindings": {
-      "version": "1.3.1",
+      "version": "1.5.0",
       "from": "bindings@>=1.2.1 <2.0.0",
-      "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.3.1.tgz"
+      "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.5.0.tgz"
     },
     "bintrees": {
       "version": "1.0.1",
@@ -291,6 +369,12 @@
       "from": "brace-expansion@>=1.1.7 <2.0.0",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz"
     },
+    "browser-stdout": {
+      "version": "1.3.0",
+      "from": "browser-stdout@1.3.0",
+      "resolved": "https://registry.npmjs.org/browser-stdout/-/browser-stdout-1.3.0.tgz",
+      "dev": true
+    },
     "bson": {
       "version": "0.4.23",
       "from": "bson@>=0.4.20 <0.5.0",
@@ -317,9 +401,15 @@
       "resolved": "https://registry.npmjs.org/buffer-shims/-/buffer-shims-1.0.0.tgz"
     },
     "builtin-modules": {
-      "version": "3.0.0",
+      "version": "3.1.0",
       "from": "builtin-modules@>=3.0.0 <4.0.0",
-      "resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-3.0.0.tgz"
+      "resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-3.1.0.tgz"
+    },
+    "bunyan": {
+      "version": "2.0.2",
+      "from": "bunyan@>=2.0.2 <2.1.0",
+      "resolved": "https://registry.npmjs.org/bunyan/-/bunyan-2.0.2.tgz",
+      "dev": true
     },
     "byline": {
       "version": "4.2.2",
@@ -336,6 +426,18 @@
       "from": "caseless@>=0.12.0 <0.13.0",
       "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz"
     },
+    "chai": {
+      "version": "4.1.2",
+      "from": "chai@>=4.1.1 <4.2.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.1.2.tgz",
+      "dev": true
+    },
+    "check-error": {
+      "version": "1.0.2",
+      "from": "check-error@>=1.0.1 <2.0.0",
+      "resolved": "https://registry.npmjs.org/check-error/-/check-error-1.0.2.tgz",
+      "dev": true
+    },
     "cli": {
       "version": "0.6.6",
       "from": "cli@>=0.6.6 <0.7.0",
@@ -359,7 +461,8 @@
     "coffee-script": {
       "version": "1.12.4",
       "from": "coffee-script@1.12.4",
-      "resolved": "https://registry.npmjs.org/coffee-script/-/coffee-script-1.12.4.tgz"
+      "resolved": "https://registry.npmjs.org/coffee-script/-/coffee-script-1.12.4.tgz",
+      "dev": true
     },
     "combined-stream": {
       "version": "0.0.7",
@@ -388,9 +491,9 @@
       "resolved": "https://registry.npmjs.org/console-control-strings/-/console-control-strings-1.1.0.tgz"
     },
     "console-log-level": {
-      "version": "1.4.0",
+      "version": "1.4.1",
       "from": "console-log-level@>=1.4.0 <2.0.0",
-      "resolved": "https://registry.npmjs.org/console-log-level/-/console-log-level-1.4.0.tgz"
+      "resolved": "https://registry.npmjs.org/console-log-level/-/console-log-level-1.4.1.tgz"
     },
     "continuation-local-storage": {
       "version": "3.2.1",
@@ -441,15 +544,21 @@
       "from": "debug@*",
       "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz"
     },
+    "deep-eql": {
+      "version": "3.0.1",
+      "from": "deep-eql@>=3.0.0 <4.0.0",
+      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-3.0.1.tgz",
+      "dev": true
+    },
     "deep-extend": {
       "version": "0.6.0",
       "from": "deep-extend@>=0.6.0 <0.7.0",
       "resolved": "https://registry.npmjs.org/deep-extend/-/deep-extend-0.6.0.tgz"
     },
     "delay": {
-      "version": "4.1.0",
+      "version": "4.3.0",
       "from": "delay@>=4.0.1 <5.0.0",
-      "resolved": "https://registry.npmjs.org/delay/-/delay-4.1.0.tgz"
+      "resolved": "https://registry.npmjs.org/delay/-/delay-4.3.0.tgz"
     },
     "delayed-stream": {
       "version": "0.0.5",
@@ -463,19 +572,31 @@
       "resolved": "https://registry.npmjs.org/delegates/-/delegates-1.0.0.tgz"
     },
     "denque": {
-      "version": "1.4.0",
+      "version": "1.4.1",
       "from": "denque@>=1.1.0 <2.0.0",
-      "resolved": "https://registry.npmjs.org/denque/-/denque-1.4.0.tgz"
+      "resolved": "https://registry.npmjs.org/denque/-/denque-1.4.1.tgz"
     },
     "detect-libc": {
       "version": "1.0.3",
       "from": "detect-libc@>=1.0.2 <2.0.0",
       "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-1.0.3.tgz"
     },
+    "diff": {
+      "version": "3.3.1",
+      "from": "diff@3.3.1",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-3.3.1.tgz",
+      "dev": true
+    },
+    "dtrace-provider": {
+      "version": "0.8.7",
+      "from": "dtrace-provider@>=0.8.0 <0.9.0",
+      "resolved": "https://registry.npmjs.org/dtrace-provider/-/dtrace-provider-0.8.7.tgz",
+      "optional": true
+    },
     "duplexify": {
-      "version": "3.6.1",
+      "version": "3.7.1",
       "from": "duplexify@>=3.6.0 <4.0.0",
-      "resolved": "https://registry.npmjs.org/duplexify/-/duplexify-3.6.1.tgz"
+      "resolved": "https://registry.npmjs.org/duplexify/-/duplexify-3.7.1.tgz"
     },
     "each-series": {
       "version": "1.0.0",
@@ -488,9 +609,9 @@
       "resolved": "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz"
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       "resolved": "https://registry.npmjs.org/parse-mongo-url/-/parse-mongo-url-1.1.1.tgz"
     },
     "parse-ms": {
-      "version": "2.0.0",
+      "version": "2.1.0",
       "from": "parse-ms@>=2.0.0 <3.0.0",
-      "resolved": "https://registry.npmjs.org/parse-ms/-/parse-ms-2.0.0.tgz"
+      "resolved": "https://registry.npmjs.org/parse-ms/-/parse-ms-2.1.0.tgz"
     },
     "path-is-absolute": {
       "version": "1.0.1",
@@ -1403,6 +1665,26 @@
       "from": "path-parse@>=1.0.6 <2.0.0",
       "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.6.tgz"
     },
+    "path-to-regexp": {
+      "version": "1.7.0",
+      "from": "path-to-regexp@>=1.7.0 <2.0.0",
+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-1.7.0.tgz",
+      "dev": true,
+      "dependencies": {
+        "isarray": {
+          "version": "0.0.1",
+          "from": "isarray@0.0.1",
+          "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
+          "dev": true
+        }
+      }
+    },
+    "pathval": {
+      "version": "1.1.0",
+      "from": "pathval@>=1.0.0 <2.0.0",
+      "resolved": "https://registry.npmjs.org/pathval/-/pathval-1.1.0.tgz",
+      "dev": true
+    },
     "pause": {
       "version": "0.0.1",
       "from": "pause@0.0.1",
@@ -1429,14 +1711,21 @@
       "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.0.tgz"
     },
     "prom-client": {
-      "version": "11.2.1",
+      "version": "11.5.1",
       "from": "prom-client@>=11.1.3 <12.0.0",
-      "resolved": "https://registry.npmjs.org/prom-client/-/prom-client-11.2.1.tgz"
+      "resolved": "https://registry.npmjs.org/prom-client/-/prom-client-11.5.1.tgz"
     },
     "protobufjs": {
       "version": "6.8.8",
       "from": "protobufjs@>=6.8.6 <6.9.0",
-      "resolved": "https://registry.npmjs.org/protobufjs/-/protobufjs-6.8.8.tgz"
+      "resolved": "https://registry.npmjs.org/protobufjs/-/protobufjs-6.8.8.tgz",
+      "dependencies": {
+        "@types/node": {
+          "version": "10.14.9",
+          "from": "@types/node@>=10.1.0 <11.0.0",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-10.14.9.tgz"
+        }
+      }
     },
     "psl": {
       "version": "1.1.31",
@@ -1469,9 +1758,9 @@
       "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-0.0.4.tgz"
     },
     "raven": {
-      "version": "1.2.1",
-      "from": "raven@>=1.1.3 <2.0.0",
-      "resolved": "https://registry.npmjs.org/raven/-/raven-1.2.1.tgz",
+      "version": "1.1.3",
+      "from": "raven@1.1.3",
+      "resolved": "https://registry.npmjs.org/raven/-/raven-1.1.3.tgz",
       "dependencies": {
         "cookie": {
           "version": "0.3.1",
@@ -1517,6 +1806,11 @@
       "from": "redis-errors@>=1.2.0 <2.0.0",
       "resolved": "https://registry.npmjs.org/redis-errors/-/redis-errors-1.2.0.tgz"
     },
+    "redis-parser": {
+      "version": "3.0.0",
+      "from": "redis-parser@>=3.0.0 <4.0.0",
+      "resolved": "https://registry.npmjs.org/redis-parser/-/redis-parser-3.0.0.tgz"
+    },
     "redis-sentinel": {
       "version": "0.1.1",
       "from": "redis-sentinel@0.1.1",
@@ -1530,44 +1824,19 @@
       }
     },
     "redis-sharelatex": {
-      "version": "1.0.5",
-      "from": "redis-sharelatex@>=1.0.5 <2.0.0",
-      "resolved": "https://registry.npmjs.org/redis-sharelatex/-/redis-sharelatex-1.0.5.tgz",
+      "version": "1.0.8",
+      "from": "redis-sharelatex@1.0.8",
+      "resolved": "https://registry.npmjs.org/redis-sharelatex/-/redis-sharelatex-1.0.8.tgz",
       "dependencies": {
         "async": {
-          "version": "2.6.1",
+          "version": "2.6.2",
           "from": "async@>=2.5.0 <3.0.0",
-          "resolved": "https://registry.npmjs.org/async/-/async-2.6.1.tgz"
+          "resolved": "https://registry.npmjs.org/async/-/async-2.6.2.tgz"
         },
         "coffee-script": {
           "version": "1.8.0",
           "from": "coffee-script@1.8.0",
           "resolved": "https://registry.npmjs.org/coffee-script/-/coffee-script-1.8.0.tgz"
-        },
-        "debug": {
-          "version": "3.2.6",
-          "from": "debug@>=3.1.0 <4.0.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz"
-        },
-        "ioredis": {
-          "version": "4.6.0",
-          "from": "ioredis@4.6.0",
-          "resolved": "https://registry.npmjs.org/ioredis/-/ioredis-4.6.0.tgz"
-        },
-        "lodash": {
-          "version": "4.17.11",
-          "from": "lodash@>=4.17.10 <5.0.0",
-          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz"
-        },
-        "redis": {
-          "version": "0.12.1",
-          "from": "redis@0.12.1",
-          "resolved": "https://registry.npmjs.org/redis/-/redis-0.12.1.tgz"
-        },
-        "redis-parser": {
-          "version": "3.0.0",
-          "from": "redis-parser@>=3.0.0 <4.0.0",
-          "resolved": "https://registry.npmjs.org/redis-parser/-/redis-parser-3.0.0.tgz"
         }
       }
     },
@@ -1671,14 +1940,20 @@
       "resolved": "https://registry.npmjs.org/require_optional/-/require_optional-1.0.1.tgz"
     },
     "require-in-the-middle": {
-      "version": "3.1.0",
-      "from": "require-in-the-middle@>=3.0.0 <4.0.0",
-      "resolved": "https://registry.npmjs.org/require-in-the-middle/-/require-in-the-middle-3.1.0.tgz"
+      "version": "4.0.0",
+      "from": "require-in-the-middle@>=4.0.0 <5.0.0",
+      "resolved": "https://registry.npmjs.org/require-in-the-middle/-/require-in-the-middle-4.0.0.tgz"
+    },
+    "require-like": {
+      "version": "0.1.2",
+      "from": "require-like@0.1.2",
+      "resolved": "https://registry.npmjs.org/require-like/-/require-like-0.1.2.tgz",
+      "dev": true
     },
     "resolve": {
-      "version": "1.9.0",
-      "from": "resolve@>=1.5.0 <2.0.0",
-      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.9.0.tgz"
+      "version": "1.11.0",
+      "from": "resolve@>=1.10.0 <2.0.0",
+      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.11.0.tgz"
     },
     "resolve-from": {
       "version": "2.0.0",
@@ -1745,6 +2020,26 @@
       "from": "safer-buffer@>=2.0.2 <3.0.0",
       "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz"
     },
+    "samsam": {
+      "version": "1.3.0",
+      "from": "samsam@>=1.1.3 <2.0.0",
+      "resolved": "https://registry.npmjs.org/samsam/-/samsam-1.3.0.tgz",
+      "dev": true
+    },
+    "sandboxed-module": {
+      "version": "0.3.0",
+      "from": "sandboxed-module@>=0.3.0 <0.4.0",
+      "resolved": "https://registry.npmjs.org/sandboxed-module/-/sandboxed-module-0.3.0.tgz",
+      "dev": true,
+      "dependencies": {
+        "stack-trace": {
+          "version": "0.0.6",
+          "from": "stack-trace@0.0.6",
+          "resolved": "https://registry.npmjs.org/stack-trace/-/stack-trace-0.0.6.tgz",
+          "dev": true
+        }
+      }
+    },
     "sax": {
       "version": "1.2.1",
       "from": "sax@1.2.1",
@@ -1778,9 +2073,9 @@
       }
     },
     "shimmer": {
-      "version": "1.2.0",
+      "version": "1.2.1",
       "from": "shimmer@>=1.2.0 <2.0.0",
-      "resolved": "https://registry.npmjs.org/shimmer/-/shimmer-1.2.0.tgz"
+      "resolved": "https://registry.npmjs.org/shimmer/-/shimmer-1.2.1.tgz"
     },
     "sigmund": {
       "version": "1.0.1",
@@ -1792,6 +2087,12 @@
       "from": "signal-exit@>=3.0.0 <4.0.0",
       "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.2.tgz"
     },
+    "sinon": {
+      "version": "3.2.1",
+      "from": "sinon@>=3.2.1 <3.3.0",
+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-3.2.1.tgz",
+      "dev": true
+    },
     "sntp": {
       "version": "0.2.4",
       "from": "sntp@>=0.2.0 <0.3.0",
@@ -1831,9 +2132,9 @@
       "resolved": "https://registry.npmjs.org/stack-trace/-/stack-trace-0.0.9.tgz"
     },
     "standard-as-callback": {
-      "version": "1.0.1",
-      "from": "standard-as-callback@>=1.0.0 <2.0.0",
-      "resolved": "https://registry.npmjs.org/standard-as-callback/-/standard-as-callback-1.0.1.tgz"
+      "version": "2.0.1",
+      "from": "standard-as-callback@>=2.0.1 <3.0.0",
+      "resolved": "https://registry.npmjs.org/standard-as-callback/-/standard-as-callback-2.0.1.tgz"
     },
     "statsd-parser": {
       "version": "0.0.4",
@@ -1877,10 +2178,11 @@
       "from": "strip-json-comments@>=2.0.1 <2.1.0",
       "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz"
     },
-    "symbol-observable": {
-      "version": "1.2.0",
-      "from": "symbol-observable@>=1.2.0 <2.0.0",
-      "resolved": "https://registry.npmjs.org/symbol-observable/-/symbol-observable-1.2.0.tgz"
+    "supports-color": {
+      "version": "4.4.0",
+      "from": "supports-color@4.4.0",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-4.4.0.tgz",
+      "dev": true
     },
     "tar": {
       "version": "2.2.1",
@@ -1936,6 +2238,12 @@
         }
       }
     },
+    "text-encoding": {
+      "version": "0.6.4",
+      "from": "text-encoding@0.6.4",
+      "resolved": "https://registry.npmjs.org/text-encoding/-/text-encoding-0.6.4.tgz",
+      "dev": true
+    },
     "through": {
       "version": "2.3.8",
       "from": "through@>=2.2.7 <3.0.0",
@@ -1951,6 +2259,12 @@
       "from": "thunky@>=0.1.0 <0.2.0",
       "resolved": "https://registry.npmjs.org/thunky/-/thunky-0.1.0.tgz"
     },
+    "timekeeper": {
+      "version": "0.0.4",
+      "from": "timekeeper@0.0.4",
+      "resolved": "https://registry.npmjs.org/timekeeper/-/timekeeper-0.0.4.tgz",
+      "dev": true
+    },
     "to-mongodb-core": {
       "version": "2.0.0",
       "from": "to-mongodb-core@>=2.0.0 <3.0.0",
@@ -1981,6 +2295,12 @@
       "from": "tweetnacl@>=0.14.0 <0.15.0",
       "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz"
     },
+    "type-detect": {
+      "version": "4.0.8",
+      "from": "type-detect@>=4.0.0 <5.0.0",
+      "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
+      "dev": true
+    },
     "uid-number": {
       "version": "0.0.6",
       "from": "uid-number@>=0.0.6 <0.0.7",
diff --git a/services/track-changes/package.json b/services/track-changes/package.json
index 31265d6972..8c632c7be4 100644
--- a/services/track-changes/package.json
+++ b/services/track-changes/package.json
@@ -29,12 +29,12 @@
     "express": "3.3.5",
     "heap": "^0.2.6",
     "line-reader": "^0.2.4",
-    "logger-sharelatex": "^1.6.0",
-    "metrics-sharelatex": "^2.1.1",
+    "logger-sharelatex": "^1.7.0",
+    "metrics-sharelatex": "^2.2.0",
     "mongo-uri": "^0.1.2",
     "mongojs": "2.4.0",
     "redis": "~0.10.1",
-    "redis-sharelatex": "^1.0.5",
+    "redis-sharelatex": "^1.0.8",
     "request": "~2.33.0",
     "requestretry": "^1.12.0",
     "s3-streams": "^0.3.0",
diff --git a/services/track-changes/test/acceptance/coffee/AppendingUpdatesTests.coffee b/services/track-changes/test/acceptance/coffee/AppendingUpdatesTests.coffee
index 45dcec23bf..303f71660b 100644
--- a/services/track-changes/test/acceptance/coffee/AppendingUpdatesTests.coffee
+++ b/services/track-changes/test/acceptance/coffee/AppendingUpdatesTests.coffee
@@ -39,6 +39,7 @@ describe "Appending doc ops to the history", ->
 				TrackChangesClient.flushAndGetCompressedUpdates @project_id, @doc_id, (error, @updates) =>
 					throw error if error?
 					done()
+			return null
 
 		it "should insert the compressed op into mongo", ->
 			expect(@updates[0].pack[0].op).to.deep.equal [{
@@ -58,6 +59,7 @@ describe "Appending doc ops to the history", ->
 			rclient.sismember "DocsWithHistoryOps:#{@project_id}", @doc_id, (error, member) ->
 				member.should.equal 0
 				done()
+			return null
 
 	describe "when the history has already been started", ->
 		beforeEach (done) ->
@@ -82,6 +84,7 @@ describe "Appending doc ops to the history", ->
 				TrackChangesClient.flushAndGetCompressedUpdates @project_id, @doc_id, (error, updates) =>
 					throw error if error?
 					done()
+			return null
 
 		describe "when the updates are recent and from the same user", ->
 			beforeEach (done) ->
@@ -102,6 +105,7 @@ describe "Appending doc ops to the history", ->
 					TrackChangesClient.flushAndGetCompressedUpdates @project_id, @doc_id, (error, @updates) =>
 						throw error if error?
 						done()
+				return null
 
 			it "should combine all the updates into one pack", ->
 				expect(@updates[0].pack[1].op).to.deep.equal [{
@@ -132,6 +136,7 @@ describe "Appending doc ops to the history", ->
 					TrackChangesClient.flushAndGetCompressedUpdates @project_id, @doc_id, (error, @updates) =>
 						throw error if error?
 						done()
+				return null
 
 			it "should combine the updates into one pack", ->
 				expect(@updates[0].pack[0].op).to.deep.equal [{
@@ -162,6 +167,7 @@ describe "Appending doc ops to the history", ->
 				TrackChangesClient.flushAndGetCompressedUpdates @project_id, @doc_id, (error, @updates) =>
 					throw error if error?
 					done()
+			return null
 
 		it "should concat the compressed op into mongo", ->
 			expect(@updates[0].pack.length).to.deep.equal 3  # batch size is 100
@@ -190,6 +196,7 @@ describe "Appending doc ops to the history", ->
 				TrackChangesClient.flushAndGetCompressedUpdates @project_id, @doc_id, (error, @updates) =>
 					throw error if error?
 					done()
+			return null
 
 		it "should insert the compressed ops into mongo", ->
 			expect(@updates[0].pack[0].op).to.deep.equal [{
@@ -223,6 +230,7 @@ describe "Appending doc ops to the history", ->
 				TrackChangesClient.flushAndGetCompressedUpdates @project_id, @doc_id, (error, @updates) =>
 					throw error if error?
 					done()
+			return null
 
 		it "should insert the compressed no-op into mongo", ->
 			expect(@updates[0].pack[0].op).to.deep.equal []
@@ -252,6 +260,7 @@ describe "Appending doc ops to the history", ->
 				TrackChangesClient.flushAndGetCompressedUpdates @project_id, @doc_id, (error, @updates) =>
 					throw error if error?
 					done()
+			return null
 
 		it "should ignore the comment op", ->
 			expect(@updates[0].pack[0].op).to.deep.equal [{d: "bar", p: 6}]
@@ -275,6 +284,7 @@ describe "Appending doc ops to the history", ->
 				TrackChangesClient.flushAndGetCompressedUpdates @project_id, @doc_id, (error, @updates) =>
 					throw error if error?
 					done()
+			return null
 
 		it "should not add a expiresAt entry in the update in mongo", ->
 			expect(@updates[0].expiresAt).to.be.undefined
@@ -295,6 +305,7 @@ describe "Appending doc ops to the history", ->
 				TrackChangesClient.flushAndGetCompressedUpdates @project_id, @doc_id, (error, @updates) =>
 					throw error if error?
 					done()
+			return null
 
 		it "should add a expiresAt entry in the update in mongo", ->
 			expect(@updates[0].expiresAt).to.exist
diff --git a/services/track-changes/test/acceptance/coffee/ArchivingUpdatesTests.coffee b/services/track-changes/test/acceptance/coffee/ArchivingUpdatesTests.coffee
index 06d339795f..0ff62d70d9 100644
--- a/services/track-changes/test/acceptance/coffee/ArchivingUpdatesTests.coffee
+++ b/services/track-changes/test/acceptance/coffee/ArchivingUpdatesTests.coffee
@@ -64,6 +64,7 @@ describe "Archiving updates", ->
 				TrackChangesClient.flushDoc @project_id, @doc_id, (error) ->
 					throw error if error?
 					done()
+		return null
 
 	after (done) ->
 		MockWebApi.getUserInfo.restore()
@@ -76,6 +77,7 @@ describe "Archiving updates", ->
 			TrackChangesClient.pushDocHistory @project_id, @doc_id, (error) ->
 				throw error if error?
 				done()
+			return null
 
 		it "should have one cached pack", (done) ->
 			db.docHistory.count { doc_id: ObjectId(@doc_id), expiresAt:{$exists:true}}, (error, count) ->
@@ -120,6 +122,7 @@ describe "Archiving updates", ->
 			TrackChangesClient.pullDocHistory @project_id, @doc_id, (error) ->
 				throw error if error?
 				done()
+			return null
 
 		it "should restore both packs", (done) ->
 			db.docHistory.count { doc_id: ObjectId(@doc_id) }, (error, count) ->
diff --git a/services/track-changes/test/acceptance/coffee/FlushingUpdatesTests.coffee b/services/track-changes/test/acceptance/coffee/FlushingUpdatesTests.coffee
index b3fd843c6b..aaf9710d60 100644
--- a/services/track-changes/test/acceptance/coffee/FlushingUpdatesTests.coffee
+++ b/services/track-changes/test/acceptance/coffee/FlushingUpdatesTests.coffee
@@ -15,7 +15,7 @@ MockWebApi = require "./helpers/MockWebApi"
 describe "Flushing updates", ->
 	before (done)->
 		TrackChangesApp.ensureRunning done
-		
+
 	describe "flushing a doc's updates", ->
 		before (done) ->
 			@project_id = ObjectId().toString()
@@ -32,6 +32,7 @@ describe "Flushing updates", ->
 				TrackChangesClient.flushDoc @project_id, @doc_id, (error) ->
 					throw error if error?
 					done()
+			return null
 
 		it "should flush the op into mongo", (done) ->
 			TrackChangesClient.getCompressedUpdates @doc_id, (error, updates) ->
@@ -39,6 +40,7 @@ describe "Flushing updates", ->
 					p: 3, i: "f"
 				}]
 				done()
+			return null
 
 	describe "flushing a project's updates", ->
 		describe "with versioning enabled", ->
@@ -66,16 +68,19 @@ describe "Flushing updates", ->
 					TrackChangesClient.flushProject @project_id, (error) ->
 						throw error if error?
 						done()
+				return null
 
 			it "should not mark the updates for deletion", (done) ->
 				TrackChangesClient.getCompressedUpdates @doc_id, (error, updates) ->
 					expect(updates[0].expiresAt).to.not.exist
 					done()
+				return null
 
 			it "should preserve history forever", (done) ->
 				TrackChangesClient.getProjectMetaData @project_id, (error, project) ->
 					expect(project.preserveHistory).to.equal true
 					done()
+				return null
 
 		describe "without versioning enabled", ->
 			before (done) ->
@@ -102,11 +107,13 @@ describe "Flushing updates", ->
 					TrackChangesClient.flushProject @project_id, (error) ->
 						throw error if error?
 						done()
+				return null
 
 			it "should mark the updates for deletion", (done) ->
 				TrackChangesClient.getCompressedUpdates @doc_id, (error, updates) ->
 					expect(updates[0].expiresAt).to.exist
 					done()
+				return null
 
 		describe "without versioning enabled but with preserveHistory set to true", ->
 			before (done) ->
@@ -135,8 +142,10 @@ describe "Flushing updates", ->
 						TrackChangesClient.flushProject @project_id, (error) ->
 							throw error if error?
 							done()
+				return null
 
 			it "should not mark the updates for deletion", (done) ->
 				TrackChangesClient.getCompressedUpdates @doc_id, (error, updates) ->
 					expect(updates[0].expiresAt).to.not.exist
 					done()
+				return null
diff --git a/services/track-changes/test/acceptance/coffee/GettingADiffTests.coffee b/services/track-changes/test/acceptance/coffee/GettingADiffTests.coffee
index 916702eecf..1e9bed197b 100644
--- a/services/track-changes/test/acceptance/coffee/GettingADiffTests.coffee
+++ b/services/track-changes/test/acceptance/coffee/GettingADiffTests.coffee
@@ -67,10 +67,12 @@ describe "Getting a diff", ->
 					throw error if error?
 					@diff = diff.diff
 					done()
+		return null
 
 	afterEach () ->
 		MockDocUpdaterApi.getDoc.restore()
 		MockWebApi.getUserInfo.restore()
+		return null
 
 	it "should return the diff", ->
 		expect(@diff).to.deep.equal @expected_diff
@@ -79,3 +81,4 @@ describe "Getting a diff", ->
 		MockDocUpdaterApi.getDoc
 			.calledWith(@project_id, @doc_id)
 			.should.equal true
+		return null
diff --git a/services/track-changes/test/acceptance/coffee/GettingUpdatesTests.coffee b/services/track-changes/test/acceptance/coffee/GettingUpdatesTests.coffee
index e8619be06e..4a9e9586d6 100644
--- a/services/track-changes/test/acceptance/coffee/GettingUpdatesTests.coffee
+++ b/services/track-changes/test/acceptance/coffee/GettingUpdatesTests.coffee
@@ -47,14 +47,16 @@ describe "Getting updates", ->
 				v: 2 * i + 2
 			}
 		@updates[0].meta.user_id = @deleted_user_id
-		
+
 		TrackChangesApp.ensureRunning =>
 			TrackChangesClient.pushRawUpdates @project_id, @doc_id, @updates, (error) =>
 				throw error if error?
 				done()
+		return null
 
 	after: () ->
 		MockWebApi.getUserInfo.restore()
+		return null
 
 	describe "getting updates up to the limit", ->
 		before (done) ->
@@ -62,6 +64,7 @@ describe "Getting updates", ->
 				throw error if error?
 				@updates = body.updates
 				done()
+			return null
 
 		it "should fetch the user details from the web api", ->
 			MockWebApi.getUserInfo
@@ -101,6 +104,7 @@ describe "Getting updates", ->
 				throw error if error?
 				@updates = body.updates
 				done()
+			return null
 
 		it "should return as many updates as it can", ->
 			docs1 = {}
diff --git a/services/track-changes/test/acceptance/coffee/LockManagerTests.coffee b/services/track-changes/test/acceptance/coffee/LockManagerTests.coffee
index 0468a75109..5bf01e4d9c 100644
--- a/services/track-changes/test/acceptance/coffee/LockManagerTests.coffee
+++ b/services/track-changes/test/acceptance/coffee/LockManagerTests.coffee
@@ -13,6 +13,7 @@ describe "Locking document", ->
 
 	before (done)->
 		TrackChangesApp.ensureRunning done
+		return null
 		
 	describe "when the lock has expired in redis", ->
 		before (done) ->
@@ -29,8 +30,10 @@ describe "Locking document", ->
 			, (error) ->
 				# we get here after trying to release lock A
 				done()
+			return null
 
 		it "the new lock should not be removed by the expired locker", (done) ->
 			LockManager.checkLock "doc123", (err, isFree) ->
 					expect(isFree).to.equal false
 					done()
+			return null
diff --git a/services/track-changes/test/acceptance/coffee/RestoringVersions.coffee b/services/track-changes/test/acceptance/coffee/RestoringVersions.coffee
index 62d374c28e..647db4952b 100644
--- a/services/track-changes/test/acceptance/coffee/RestoringVersions.coffee
+++ b/services/track-changes/test/acceptance/coffee/RestoringVersions.coffee
@@ -61,11 +61,14 @@ describe "Restoring a version", ->
 				TrackChangesClient.restoreDoc @project_id, @doc_id, @beforeVersion, @user_id, (error) =>
 					throw error if error?
 					done()
+		return null
 
 	after () ->
 		MockDocUpdaterApi.setDoc.restore()
+		return null
 
 	it "should set the doc in the doc updater", ->
 		MockDocUpdaterApi.setDoc
 			.calledWith(@project_id, @doc_id, @restored_lines, @user_id, true)
 			.should.equal true
+		return null