diff --git a/services/web/local-dev.env b/services/web/local-dev.env
index 75a397c4e4..a2193da48c 100644
--- a/services/web/local-dev.env
+++ b/services/web/local-dev.env
@@ -1,19 +1,20 @@
-REDIS_HOST=localhost
-QUEUES_REDIS_HOST=localhost
-ANALYTICS_QUEUES_REDIS_HOST=localhost
-PUBSUB_REDIS_HOST=localhost
-RATELIMITER_REDIS_HOST=localhost
-GCLOUD_2_REDIS_HOST=localhost
-POSTGRES_HOST=localhost
-MONGO_URL=mongodb://localhost/sharelatex?directConnection=true
-SHARELATEX_LDAP_URL=ldap://localhost:22389
-SAML_BASE_URL_PATH=http://localhost:22280/simplesaml/
-SHARELATEX_SAML_ENTRYPOINT=http://localhost:22280/simplesaml/saml2/idp/SSOService.php
+WEBPACK_HOST=127.0.0.1
+REDIS_HOST=127.0.0.1
+QUEUES_REDIS_HOST=127.0.0.1
+ANALYTICS_QUEUES_REDIS_HOST=127.0.0.1
+PUBSUB_REDIS_HOST=127.0.0.1
+RATELIMITER_REDIS_HOST=127.0.0.1
+GCLOUD_2_REDIS_HOST=127.0.0.1
+POSTGRES_HOST=127.0.0.1
+MONGO_URL=mongodb://127.0.0.1/sharelatex?directConnection=true
+SHARELATEX_LDAP_URL=ldap://127.0.0.1:22389
+SAML_BASE_URL_PATH=http://127.0.0.1:22280/simplesaml/
+SHARELATEX_SAML_ENTRYPOINT=http://127.0.0.1:22280/simplesaml/saml2/idp/SSOService.php
 SHARELATEX_SAML_CALLBACK_URL=http://www.dev-overleaf.com/saml/callback
 COOKIE_DOMAIN=.dev-overleaf.com
 PUBLIC_URL=https://www.dev-overleaf.com
 CURRENT_IMAGE_NAME=texlive-full:2021.1
-LINKED_URL_PROXY=http://localhost:8081/proxy/secret-proxy-token
+LINKED_URL_PROXY=http://127.0.0.1:8081/proxy/secret-proxy-token
 SHARELATEX_CONFIG=$(pwd)/../../config/settings.web.js
 ENABLE_PDF_CACHING=true
 HAVE_I_BEEN_PWNED_ENABLED=true
diff --git a/services/web/local-test.env b/services/web/local-test.env
index c420a6ce0f..d596615a79 100644
--- a/services/web/local-test.env
+++ b/services/web/local-test.env
@@ -1,19 +1,18 @@
 CLEANUP_MONGO=true
 
-REDIS_HOST=localhost
+REDIS_HOST=127.0.0.1
 REDIS_DB=5
-QUEUES_REDIS_HOST=localhost
-PUBSUB_REDIS_HOST=localhost
-RATELIMITER_REDIS_HOST=localhost
-GCLOUD_2_REDIS_HOST=localhost
-QUEUES_REDIS_HOST=localhost
-POSTGRES_HOST=localhost
-MONGO_URL=mongodb://localhost/test-sharelatex
-SHARELATEX_LDAP_URL=ldap://localhost:22389
-SAML_BASE_URL_PATH=http://localhost:22280/simplesaml/
-SHARELATEX_SAML_ENTRYPOINT=http://localhost:22280/simplesaml/saml2/idp/SSOService.php
-SHARELATEX_SAML_CALLBACK_URL=http://localhost:22280/saml/callback
+QUEUES_REDIS_HOST=127.0.0.1
+PUBSUB_REDIS_HOST=127.0.0.1
+RATELIMITER_REDIS_HOST=127.0.0.1
+GCLOUD_2_REDIS_HOST=127.0.0.1
+POSTGRES_HOST=127.0.0.1
+MONGO_URL=mongodb://127.0.0.1/test-sharelatex
+SHARELATEX_LDAP_URL=ldap://127.0.0.1:22389
+SAML_BASE_URL_PATH=http://127.0.0.1:22280/simplesaml/
+SHARELATEX_SAML_ENTRYPOINT=http://127.0.0.1:22280/simplesaml/saml2/idp/SSOService.php
+SHARELATEX_SAML_CALLBACK_URL=http://127.0.0.1:22280/saml/callback
 
 COOKIE_DOMAIN=
-PUBLIC_URL=http://localhost:23000
-HTTP_TEST_HOST=localhost
+PUBLIC_URL=http://127.0.0.1:23000
+HTTP_TEST_HOST=127.0.0.1