diff --git a/.github/workflows/go.yaml b/.github/workflows/go.yaml
index 072a2a6..46ae62a 100644
--- a/.github/workflows/go.yaml
+++ b/.github/workflows/go.yaml
@@ -22,7 +22,7 @@ jobs:
   check:
     uses: int128/go-workflows/.github/workflows/check.yaml@v0.1.0
     with:
-        go-version: 1.21.1
+        go-version: 1.21.2
         golangci-lint-version: v1.54.2
 
   test:
@@ -32,5 +32,5 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v4
         with:
-          go-version: 1.21.1
+          go-version: 1.21.2
       - run: go test -v -race ./...
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index dc0a0fa..a52dca5 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -57,7 +57,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v4
         with:
-          go-version: 1.21.1
+          go-version: 1.21.2
       - run: go build -ldflags '-X main.version=${{ github.ref_name }}'
       - uses: int128/go-actions/release@v1
         with:
diff --git a/.github/workflows/system-test.yaml b/.github/workflows/system-test.yaml
index bd4361c..510fdb9 100644
--- a/.github/workflows/system-test.yaml
+++ b/.github/workflows/system-test.yaml
@@ -25,7 +25,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v4
         with:
-          go-version: 1.21.1
+          go-version: 1.21.2
 
       # for certutil
       # https://packages.ubuntu.com/xenial/libnss3-tools