diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index c6aa41358..4accdacdb 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -34,7 +34,7 @@
 #       fail-fast: false
 #       matrix:
 #         language: ["go"]
-#         versions: [1.21.3]
+#         versions: [1.21.5]
 #         # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby' ]
 #         # Use only 'java' to analyze code written in Java, Kotlin or both
 #         # Use only 'javascript' to analyze code written in JavaScript, TypeScript or both
diff --git a/.github/workflows/daily.yml b/.github/workflows/daily.yml
index ac9743aff..93ae26711 100644
--- a/.github/workflows/daily.yml
+++ b/.github/workflows/daily.yml
@@ -8,7 +8,7 @@ jobs:
   docs:
     strategy:
       matrix:
-        go-version: [1.21.3]
+        go-version: [1.21.5]
         python-version: [3.11.5]
     runs-on: ubuntu-latest
     steps:
diff --git a/.github/workflows/e2e.yml b/.github/workflows/e2e.yml
index 4b147cab8..988572ef3 100644
--- a/.github/workflows/e2e.yml
+++ b/.github/workflows/e2e.yml
@@ -36,7 +36,7 @@ jobs:
       matrix:
         docker-type: [base] # Changed docker-version to docker-type for consistency with the Makefile
         os: [polaris-linux-latest]
-        go-version: [1.21.3]
+        go-version: [1.21.5]
         arch: [amd64] # Changed go-arch to arch for consistency with the Makefile
         image-name: ["polard/base:v0.0.0"]
         export-name: [base-image]
@@ -76,7 +76,7 @@ jobs:
         namespace: [cosmos]
         docker-type: [localnet] # Changed docker-version to docker-type for consistency with the Makefile
         os: [polaris-linux-latest]
-        go-version: [1.21.3]
+        go-version: [1.21.5]
         arch: [amd64] # Changed go-arch to arch for consistency with the Makefile
         base-image: [base-image]
         image-name: ["polard/localnet:v0.0.0"]
@@ -123,7 +123,7 @@ jobs:
     strategy:
       matrix:
         os: [polaris-linux-latest]
-        go-version: [1.21.3]
+        go-version: [1.21.5]
         base-image: [base-image]
     runs-on: ${{ matrix.os }}
     steps:
@@ -153,7 +153,7 @@ jobs:
       matrix:
         namespace: ["e2e", "localnet"]
         os: [polaris-linux-latest]
-        go-version: [1.21.3]
+        go-version: [1.21.5]
         base-image: [localnet]
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/.github/workflows/pipeline.yml b/.github/workflows/pipeline.yml
index 432787a5c..b908331a5 100644
--- a/.github/workflows/pipeline.yml
+++ b/.github/workflows/pipeline.yml
@@ -36,7 +36,7 @@ jobs:
       matrix:
         args: ["build", "lint", "test-unit-race", "test-unit-cover"]
         os: [polaris-linux-latest]
-        go-version: [1.21.3]
+        go-version: [1.21.5]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout
diff --git a/build/scripts/main.mk b/build/scripts/main.mk
index 3e531d455..5ab13396f 100644
--- a/build/scripts/main.mk
+++ b/build/scripts/main.mk
@@ -65,7 +65,7 @@ proto-build:
 # Variables
 DOCKER_TYPE ?= base
 ARCH ?= arm64
-GO_VERSION ?= 1.21.3
+GO_VERSION ?= 1.21.5
 IMAGE_NAME ?= polard
 IMAGE_VERSION ?= v0.0.0
 BASE_IMAGE ?= polard/base:$(IMAGE_VERSION)
diff --git a/e2e/localnet/network/fixture_test.go b/e2e/localnet/network/fixture_test.go
index 6eff5d46b..4b32354c0 100644
--- a/e2e/localnet/network/fixture_test.go
+++ b/e2e/localnet/network/fixture_test.go
@@ -58,7 +58,7 @@ var _ = Describe("JSON RPC tests", func() {
 			"goodcontainer",
 			"8545/tcp",
 			"8546/tcp",
-			"1.21.3",
+			"1.21.5",
 		))
 		Expect(tf).ToNot(BeNil())
 		client = tf.EthClient()
diff --git a/e2e/localnet/network/node_test.go b/e2e/localnet/network/node_test.go
index c9c867d86..e5b0866bf 100644
--- a/e2e/localnet/network/node_test.go
+++ b/e2e/localnet/network/node_test.go
@@ -50,7 +50,7 @@ var _ = Describe("ContainerizedNode", func() {
 			"8545/tcp",
 			"8546/tcp",
 			[]string{
-				"GO_VERSION=1.21.3",
+				"GO_VERSION=1.21.5",
 				"BASE_IMAGE=polard/base:v0.0.0",
 			},
 		)
diff --git a/e2e/precompile/utils.go b/e2e/precompile/utils.go
index 5e557206f..146d0521e 100644
--- a/e2e/precompile/utils.go
+++ b/e2e/precompile/utils.go
@@ -34,7 +34,7 @@ const (
 	containerName       = "goodcontainer"
 	polardHTTPAddress   = "8545/tcp"
 	polardWSAddress     = "8546/tcp"
-	goVersion           = "1.21.3"
+	goVersion           = "1.21.5"
 )
 
 // NewPolarisFixtureConfig returns a polaris fixture config.
diff --git a/e2e/testapp/docker/base.Dockerfile b/e2e/testapp/docker/base.Dockerfile
index f28e7b7f4..4edfd61a2 100644
--- a/e2e/testapp/docker/base.Dockerfile
+++ b/e2e/testapp/docker/base.Dockerfile
@@ -18,7 +18,7 @@
 ###           Stage 0 - Build Arguments             ###
 #######################################################
 
-ARG GO_VERSION=1.21.3
+ARG GO_VERSION=1.21.5
 ARG GOARCH=amd64
 ARG GOOS=linux
 ARG NAME=polaris-cosmos