diff --git a/.github/workflows/golangci-lint.yml b/.github/workflows/golangci-lint.yml
index c72efe4b..be055e71 100644
--- a/.github/workflows/golangci-lint.yml
+++ b/.github/workflows/golangci-lint.yml
@@ -15,7 +15,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v3
         with:
-          go-version: "1.21.5"
+          go-version: "1.21.9"
       - uses: actions/checkout@v2
         with:
           fetch-depth: '0'
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index b2f0c335..d02be008 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -20,7 +20,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v3
         with:
-          go-version: "1.21.5"
+          go-version: "1.21.9"
 
       - name: Retrieve version
         run: |
diff --git a/.github/workflows/test-all.yml b/.github/workflows/test-all.yml
index df14305b..a5ad81ef 100644
--- a/.github/workflows/test-all.yml
+++ b/.github/workflows/test-all.yml
@@ -13,7 +13,7 @@ jobs:
     - name: Install Go
       uses: actions/setup-go@v3
       with:
-        go-version: "1.21.5"
+        go-version: "1.21.9"
     - name: Check out code into the Go module directory
       uses: actions/checkout@v2
       with:
diff --git a/.github/workflows/test-windows.yml b/.github/workflows/test-windows.yml
index a4e2cdcc..91176481 100644
--- a/.github/workflows/test-windows.yml
+++ b/.github/workflows/test-windows.yml
@@ -13,7 +13,7 @@ jobs:
     - name: Install Go
       uses: actions/setup-go@v3
       with:
-        go-version: "1.21.5"
+        go-version: "1.21.9"
     - name: Check out code into the Go module directory
       uses: actions/checkout@v2
     - name: Run Tests
diff --git a/.github/workflows/trivy-scan.yml b/.github/workflows/trivy-scan.yml
index f0af2b3d..24e52040 100644
--- a/.github/workflows/trivy-scan.yml
+++ b/.github/workflows/trivy-scan.yml
@@ -10,7 +10,7 @@ jobs:
     with:
       repo: carvel-dev/ytt
       tool: ytt
-      goVersion: "1.21.5"
+      goVersion: "1.21.9"
     secrets:
       githubToken: ${{ secrets.GITHUB_TOKEN }}
       slackWebhookURL: ${{ secrets.SLACK_WEBHOOK_URL }}