diff --git a/services/real-time/.nvmrc b/services/real-time/.nvmrc
index d36e8d82f3..348076b955 100644
--- a/services/real-time/.nvmrc
+++ b/services/real-time/.nvmrc
@@ -1 +1 @@
-6.15.1
+10.15.3
diff --git a/services/real-time/Dockerfile b/services/real-time/Dockerfile
index e7243c5291..bdfbfbd123 100644
--- a/services/real-time/Dockerfile
+++ b/services/real-time/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:6.15.1 as app
+FROM node:10.15.3 as app
 
 WORKDIR /app
 
@@ -12,7 +12,7 @@ COPY . /app
 
 RUN npm run compile:all
 
-FROM node:6.15.1
+FROM node:10.15.3
 
 COPY --from=app /app /app
 
diff --git a/services/real-time/Makefile b/services/real-time/Makefile
index fdf938da5a..573659dd90 100644
--- a/services/real-time/Makefile
+++ b/services/real-time/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)
@@ -26,7 +26,9 @@ test: test_unit test_acceptance
 test_unit:
 	@[ ! -d test/unit ] && echo "real-time 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 "real-time has no acceptance tests" || $(DOCKER_COMPOSE) run --rm test_acceptance
 
 test_clean:
diff --git a/services/real-time/app.coffee b/services/real-time/app.coffee
index 6161e63a46..5c10bdb36f 100644
--- a/services/real-time/app.coffee
+++ b/services/real-time/app.coffee
@@ -45,7 +45,7 @@ io.configure ->
 	# gzip uses a Node 0.8.x method of calling the gzip program which
 	# doesn't work with 0.6.x
 	#io.enable('browser client gzip')
-	io.set('transports', ['websocket', 'flashsocket', 'htmlfile', 'xhr-polling', 'jsonp-polling'])
+	io.set('transports', ['websocket', 'htmlfile', 'xhr-polling', 'jsonp-polling'])
 	io.set('log level', 1)
 
 app.get "/", (req, res, next) ->
diff --git a/services/real-time/buildscript.txt b/services/real-time/buildscript.txt
index 5d6ccb471c..07e0c1e9ac 100644
--- a/services/real-time/buildscript.txt
+++ b/services/real-time/buildscript.txt
@@ -1,8 +1,8 @@
 real-time
 --language=coffeescript
---node-version=6.15.1
+--node-version=10.15.3
 --acceptance-creds=None
 --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/real-time/docker-compose.ci.yml b/services/real-time/docker-compose.ci.yml
index 36b52f8f8b..d2bcca9ec6 100644
--- a/services/real-time/docker-compose.ci.yml
+++ b/services/real-time/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:
@@ -21,6 +23,7 @@ services:
       MONGO_HOST: mongo
       POSTGRES_HOST: postgres
       MOCHA_GREP: ${MOCHA_GREP}
+      NODE_ENV: test
     depends_on:
       - mongo
       - redis
diff --git a/services/real-time/docker-compose.yml b/services/real-time/docker-compose.yml
index 8bb7857cb6..0d55e99a9c 100644
--- a/services/real-time/docker-compose.yml
+++ b/services/real-time/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:10.15.3
     volumes:
       - .:/app
     working_dir: /app
     environment:
       MOCHA_GREP: ${MOCHA_GREP}
+      NODE_ENV: test
     command: npm run test:unit
     user: node
 
@@ -27,6 +28,8 @@ services:
       MONGO_HOST: mongo
       POSTGRES_HOST: postgres
       MOCHA_GREP: ${MOCHA_GREP}
+      LOG_LEVEL: ERROR
+      NODE_ENV: test
     user: node
     depends_on:
       - mongo
@@ -49,3 +52,4 @@ services:
   mongo:
     image: mongo:3.4
 
+
diff --git a/services/real-time/npm-shrinkwrap.json b/services/real-time/npm-shrinkwrap.json
index 95656f81fd..a341bea726 100644
--- a/services/real-time/npm-shrinkwrap.json
+++ b/services/real-time/npm-shrinkwrap.json
@@ -1560,9 +1560,9 @@
       "dev": true
     },
     "socket.io": {
-      "version": "0.9.16",
-      "from": "socket.io@0.9.16",
-      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-0.9.16.tgz",
+      "version": "0.9.19",
+      "from": "socket.io@0.9.19",
+      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-0.9.19.tgz",
       "dependencies": {
         "redis": {
           "version": "0.7.3",
diff --git a/services/real-time/package.json b/services/real-time/package.json
index 60a978f3b5..e1e4573696 100644
--- a/services/real-time/package.json
+++ b/services/real-time/package.json
@@ -34,7 +34,7 @@
     "request": "^2.88.0",
     "session.socket.io": "^0.1.6",
     "settings-sharelatex": "^1.1.0",
-    "socket.io": "0.9.16",
+    "socket.io": "^0.9.19",
     "socket.io-client": "^0.9.16"
   },
   "devDependencies": {