diff --git a/.github/workflows/pre-main.yml b/.github/workflows/pre-main.yml
index 1e6716d..621e332 100644
--- a/.github/workflows/pre-main.yml
+++ b/.github/workflows/pre-main.yml
@@ -16,7 +16,7 @@ jobs:
       - name: Set up Go 1.21
         uses: actions/setup-go@v5
         with:
-          go-version: 1.21.5
+          go-version: 1.21.6
 
       - name: Disable default go problem matcher
         run: echo "::remove-matcher owner=go::"
diff --git a/.github/workflows/preflight.yml b/.github/workflows/preflight.yml
index 5673927..2fb7201 100644
--- a/.github/workflows/preflight.yml
+++ b/.github/workflows/preflight.yml
@@ -20,7 +20,7 @@ jobs:
       - name: Set up Go 1.21
         uses: actions/setup-go@v5
         with:
-          go-version: 1.21.5
+          go-version: 1.21.6
 
       - name: Disable default go problem matcher
         run: echo "::remove-matcher owner=go::"
diff --git a/Dockerfile b/Dockerfile
index d91cf75..a7ffd07 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,7 +9,7 @@ RUN yum install -y gcc git jq make wget
 
 # Install Go binary
 ENV GO_DL_URL="https://golang.org/dl"
-ENV GO_BIN_TAR="go1.21.5.linux-amd64.tar.gz"
+ENV GO_BIN_TAR="go1.21.6.linux-amd64.tar.gz"
 ENV GO_BIN_URL_x86_64=${GO_DL_URL}/${GO_BIN_TAR}
 ENV GOPATH="/root/go"
 RUN if [[ "$(uname -m)" -eq "x86_64" ]] ; then \
diff --git a/Dockerfile.local b/Dockerfile.local
index 41ca47e..930f8b6 100644
--- a/Dockerfile.local
+++ b/Dockerfile.local
@@ -9,7 +9,7 @@ RUN yum install -y gcc git jq make wget
 
 # Install Go binary
 ENV GO_DL_URL="https://golang.org/dl"
-ENV GO_BIN_TAR="go1.21.5.linux-amd64.tar.gz"
+ENV GO_BIN_TAR="go1.21.6.linux-amd64.tar.gz"
 ENV GO_BIN_URL_x86_64=${GO_DL_URL}/${GO_BIN_TAR}
 ENV GOPATH="/root/go"
 RUN if [[ "$(uname -m)" -eq "x86_64" ]] ; then \
diff --git a/go.mod b/go.mod
index 50adc75..2384cd2 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/test-network-function/oct
 
-go 1.21.5
+go 1.21.6
 
 require (
 	github.com/Masterminds/semver/v3 v3.2.1