diff --git a/.final_builds/packages/golang-1-linux/index.yml b/.final_builds/packages/golang-1-linux/index.yml
index 97e2bbcda0..8e2b072530 100644
--- a/.final_builds/packages/golang-1-linux/index.yml
+++ b/.final_builds/packages/golang-1-linux/index.yml
@@ -51,10 +51,6 @@ builds:
     version: 8c04109541f4d504f5be559da433998bd459b0f45cd3654557cc3642cc4d2f60
     blobstore_id: d2723887-4744-43c2-64e3-289fe6483132
     sha1: sha256:efdf65bca81264d9110ec764be7edea1de341781a1ffe59c219db064d71d9fc3
-  a53d60ed79d278964faa9bc17836ed3bc5f084c0f3d41110c8a6e0b2de5f2dc0:
-    version: a53d60ed79d278964faa9bc17836ed3bc5f084c0f3d41110c8a6e0b2de5f2dc0
-    blobstore_id: dd9adaec-b78b-45a3-6972-951089ae9f74
-    sha1: sha256:7e0fc0e87c06d8aabcb0f84c83fa15fb8f0565e60afbb7f0236050412cb8628e
   a54b33c812a8cfc39ba82782a23d74bf33f5a0a92012b41a101cc9d9d48d345c:
     version: a54b33c812a8cfc39ba82782a23d74bf33f5a0a92012b41a101cc9d9d48d345c
     blobstore_id: 5a8680dd-9f44-40ac-400b-52753e7c9b25
diff --git a/.tool-versions b/.tool-versions
index 41c6ce4e72..9cf6c4ae7a 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -6,7 +6,7 @@ concourse 7.11.2
 direnv 2.34.0
 gcloud 467.0.0
 ginkgo 2.17.1
-golang 1.21.5
+golang 1.21.4
 golangci-lint 1.57.2
 java temurin-17.0.10+7
 make 4.4
diff --git a/ci/terragrunt/app-autoscaler/concourse/pipelines/api-tester/src/go.mod b/ci/terragrunt/app-autoscaler/concourse/pipelines/api-tester/src/go.mod
index 697d476ebc..adaec751c3 100644
--- a/ci/terragrunt/app-autoscaler/concourse/pipelines/api-tester/src/go.mod
+++ b/ci/terragrunt/app-autoscaler/concourse/pipelines/api-tester/src/go.mod
@@ -1,3 +1,3 @@
 module apitester
 
-go 1.21.5
+go 1.21.4
diff --git a/go.work b/go.work
index 6dd2e0c8ba..b7455279b5 100644
--- a/go.work
+++ b/go.work
@@ -1,4 +1,4 @@
-go 1.21.5
+go 1.21.4
 
 use (
 	./src/acceptance
diff --git a/packages/golang-1-linux/spec.lock b/packages/golang-1-linux/spec.lock
index 6a23a78647..b79741c5ef 100644
--- a/packages/golang-1-linux/spec.lock
+++ b/packages/golang-1-linux/spec.lock
@@ -1,2 +1,2 @@
 name: golang-1-linux
-fingerprint: a53d60ed79d278964faa9bc17836ed3bc5f084c0f3d41110c8a6e0b2de5f2dc0
+fingerprint: 48a59edbcdab872874d3b1851402c38b62fbf4a70ebfbd055a9d63865f021a69
diff --git a/packages/golang-1-linux/vendored-commit b/packages/golang-1-linux/vendored-commit
index 71e8079258..ea71a42d62 100644
--- a/packages/golang-1-linux/vendored-commit
+++ b/packages/golang-1-linux/vendored-commit
@@ -1 +1 @@
-5dcfbfc3789c847c524993c9c4fbeb085c0f87ec
+23f9a006037c088ef7354f1f13be3f3de771c500
diff --git a/packages/golang-1-linux/version b/packages/golang-1-linux/version
index d6a49eb373..3d8ac63718 100644
--- a/packages/golang-1-linux/version
+++ b/packages/golang-1-linux/version
@@ -1 +1 @@
-1.21.5
\ No newline at end of file
+1.21.4
\ No newline at end of file
diff --git a/src/acceptance/assets/app/go_app/go.mod b/src/acceptance/assets/app/go_app/go.mod
index f6b91b726a..67d68a9ec5 100644
--- a/src/acceptance/assets/app/go_app/go.mod
+++ b/src/acceptance/assets/app/go_app/go.mod
@@ -1,6 +1,6 @@
 module code.cloudfoundry.org/app-autoscaler-release/src/acceptance/assets/app/go_app
 
-go 1.21.5
+go 1.21.4
 
 require (
 	github.com/cloudfoundry-community/go-cfenv v1.18.0
diff --git a/src/acceptance/go.mod b/src/acceptance/go.mod
index 35803ebaa4..1284a50f58 100644
--- a/src/acceptance/go.mod
+++ b/src/acceptance/go.mod
@@ -1,6 +1,6 @@
 module acceptance
 
-go 1.21.5
+go 1.21.4
 
 require (
 	github.com/cloudfoundry/cf-test-helpers/v2 v2.9.0
diff --git a/src/autoscaler/go.mod b/src/autoscaler/go.mod
index c7fe84f888..35a62f3b7d 100644
--- a/src/autoscaler/go.mod
+++ b/src/autoscaler/go.mod
@@ -1,6 +1,6 @@
 module code.cloudfoundry.org/app-autoscaler/src/autoscaler
 
-go 1.21.5
+go 1.21.4
 
 require (
 	code.cloudfoundry.org/cfhttp/v2 v2.0.1-0.20230113212937-05beac96f8c7
diff --git a/src/changelog/go.mod b/src/changelog/go.mod
index e9a3a19993..301b36e69c 100644
--- a/src/changelog/go.mod
+++ b/src/changelog/go.mod
@@ -1,6 +1,6 @@
 module changelog
 
-go 1.21.5
+go 1.21.4
 
 require (
 	github.com/Masterminds/semver/v3 v3.2.1
diff --git a/src/changeloglockcleaner/go.mod b/src/changeloglockcleaner/go.mod
index 82b24ff4cc..1fa15d34c1 100644
--- a/src/changeloglockcleaner/go.mod
+++ b/src/changeloglockcleaner/go.mod
@@ -1,6 +1,6 @@
 module changeloglockcleaner
 
-go 1.21.5
+go 1.21.4
 
 require (
 	github.com/go-sql-driver/mysql v1.8.1