diff --git a/assets/runtime/config/gitaly/config.toml b/assets/runtime/config/gitaly/config.toml
index 0b070505..8cc1400d 100644
--- a/assets/runtime/config/gitaly/config.toml
+++ b/assets/runtime/config/gitaly/config.toml
@@ -94,5 +94,5 @@ dir = "{{GITLAB_SHELL_INSTALL_DIR}}"
 
 [gitlab]
 secret_file = "/home/git/gitlab-shell/.gitlab_shell_secret"
-url = "http://localhost:8181{{GITLAB_RELATIVE_URL_ROOT}}"
+url = "http://127.0.0.1:8181{{GITLAB_RELATIVE_URL_ROOT}}"
 
diff --git a/assets/runtime/config/gitlab-pages/config b/assets/runtime/config/gitlab-pages/config
index 40978609..3377ed1c 100644
--- a/assets/runtime/config/gitlab-pages/config
+++ b/assets/runtime/config/gitlab-pages/config
@@ -4,5 +4,5 @@ auth-redirect-uri={{GITLAB_PAGES_ACCESS_REDIRECT_URI}}
 auth-secret={{GITLAB_PAGES_ACCESS_SECRET}}
 gitlab-server={{GITLAB_PAGES_ACCESS_CONTROL_SERVER}}
 artifacts-server={{GITLAB_PAGES_ARTIFACTS_SERVER_URL}}
-internal-gitlab-server=http://localhost:8181
+internal-gitlab-server=http://127.0.0.1:8181
 api-secret-key={{GITLAB_INSTALL_DIR}}/.gitlab_pages_secret
diff --git a/assets/runtime/config/gitlabhq/cable.yml b/assets/runtime/config/gitlabhq/cable.yml
index d36e74fe..e59afed6 100644
--- a/assets/runtime/config/gitlabhq/cable.yml
+++ b/assets/runtime/config/gitlabhq/cable.yml
@@ -2,11 +2,11 @@
 # https://gitlab.com/gitlab-org/gitlab/-/blob/master/config/cable.yml.example
 development:
   adapter: redis
-  url: redis://localhost:6379
+  url: redis://127.0.0.1:6379
   channel_prefix: gitlab_development
 test:
   adapter: redis
-  url: redis://localhost:6379
+  url: redis://127.0.0.1:6379
   channel_prefix: gitlab_test
 production:
   adapter: redis
diff --git a/assets/runtime/config/gitlabhq/resque.yml b/assets/runtime/config/gitlabhq/resque.yml
index 7a668153..1d7349e2 100644
--- a/assets/runtime/config/gitlabhq/resque.yml
+++ b/assets/runtime/config/gitlabhq/resque.yml
@@ -2,7 +2,7 @@
 # a Merge Request on https://gitlab.com/gitlab-org/omnibus-gitlab/merge_requests
 #
 development:
-  url: redis://localhost:6379
+  url: redis://127.0.0.1:6379
   # sentinels:
   #   -
   #     host: localhost
@@ -11,7 +11,7 @@ development:
   #     host: slave2
   #     port: 26381 # point to sentinel, not to redis port
 test:
-  url: redis://localhost:6379
+  url: redis://127.0.0.1:6379
 production:
   # Redis (single instance)
   url: redis://{{REDIS_HOST}}:{{REDIS_PORT}}/{{REDIS_DB_NUMBER}}
diff --git a/assets/runtime/config/nginx/gitlab b/assets/runtime/config/nginx/gitlab
index 75001235..185ee045 100644
--- a/assets/runtime/config/nginx/gitlab
+++ b/assets/runtime/config/nginx/gitlab
@@ -17,7 +17,7 @@
 ## See installation.md#using-https for additional HTTPS configuration details.
 
 upstream gitlab-workhorse {
-  server localhost:8181 fail_timeout=0;
+  server 127.0.0.1:8181 fail_timeout=0;
 }
 
 map $http_upgrade $connection_upgrade_gitlab {
diff --git a/assets/runtime/config/nginx/gitlab-pages b/assets/runtime/config/nginx/gitlab-pages
index 6f2978dd..c9f006c3 100644
--- a/assets/runtime/config/nginx/gitlab-pages
+++ b/assets/runtime/config/nginx/gitlab-pages
@@ -15,7 +15,7 @@ server {
     proxy_set_header    X-Forwarded-For     $proxy_add_x_forwarded_for;
     proxy_set_header    X-Forwarded-Proto   $scheme;
     # The same address as passed to GitLab Pages: `-listen-proxy`
-    proxy_pass          http://localhost:8090/;
+    proxy_pass          http://127.0.0.1:8090/;
   }
   # Define custom error pages
   error_page 403 /403.html;
diff --git a/assets/runtime/config/nginx/gitlab-ssl b/assets/runtime/config/nginx/gitlab-ssl
index 1057e092..b52b86a6 100644
--- a/assets/runtime/config/nginx/gitlab-ssl
+++ b/assets/runtime/config/nginx/gitlab-ssl
@@ -21,7 +21,7 @@
 ## See installation.md#using-https for additional HTTPS configuration details.
 
 upstream gitlab-workhorse {
-  server localhost:8181 fail_timeout=0;
+  server 127.0.0.1:8181 fail_timeout=0;
 }
 
 map $http_upgrade $connection_upgrade_gitlab_ssl {
diff --git a/assets/runtime/env-defaults b/assets/runtime/env-defaults
index d3269e8e..275aaf5c 100644
--- a/assets/runtime/env-defaults
+++ b/assets/runtime/env-defaults
@@ -15,7 +15,7 @@ GITLAB_DOWNLOADS_DIR="${GITLAB_DOWNLOADS_DIR:-$GITLAB_TEMP_DIR/downloads}"
 GITLAB_SHARED_DIR="${GITLAB_SHARED_DIR:-$GITLAB_DATA_DIR/shared}"
 GITLAB_DEFAULT_THEME=${GITLAB_DEFAULT_THEME:-2}
 GITLAB_HTTPS=${GITLAB_HTTPS:-false}
-GITLAB_HOST=${GITLAB_HOST:-localhost}
+GITLAB_HOST=${GITLAB_HOST:-127.0.0.1}
 GITLAB_CI_HOST=${GITLAB_CI_HOST:-}
 GITLAB_PORT=${GITLAB_PORT:-}
 GITLAB_IMPERSONATION_ENABLED=${GITLAB_IMPERSONATION_ENABLED:-true}
@@ -270,7 +270,7 @@ GITLAB_REGISTRY_ENABLED=${GITLAB_REGISTRY_ENABLED:-false}
 GITLAB_REGISTRY_DIR="${GITLAB_REGISTRY_DIR:-$GITLAB_SHARED_DIR/registry}"
 GITLAB_REGISTRY_HOST=${GITLAB_REGISTRY_HOST:-registry.example.com}
 GITLAB_REGISTRY_PORT=${GITLAB_REGISTRY_PORT:-443}
-GITLAB_REGISTRY_API_URL=${GITLAB_REGISTRY_API_URL:-http://localhost:5000/}
+GITLAB_REGISTRY_API_URL=${GITLAB_REGISTRY_API_URL:-http://127.0.0.1:5000/}
 GITLAB_REGISTRY_KEY_PATH=${GITLAB_REGISTRY_KEY_PATH:-config/registry.key}
 GITLAB_REGISTRY_ISSUER=${GITLAB_REGISTRY_ISSUER:-gitlab-issuer}
 GITLAB_REGISTRY_GENERATE_INTERNAL_CERTIFICATES=${GITLAB_REGISTRY_GENERATE_INTERNAL_CERTIFICATES:-false}