diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
index d058fed..8ec201f 100644
--- a/.github/workflows/integration.yml
+++ b/.github/workflows/integration.yml
@@ -9,7 +9,7 @@ jobs:
     name: Test
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
 
       - name: Setup go
         uses: actions/setup-go@v2.1.3
@@ -28,7 +28,7 @@ jobs:
     needs:
       - test
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
 
       - name: Setup go
         uses: actions/setup-go@v2.1.3
diff --git a/.github/workflows/quality.yml b/.github/workflows/quality.yml
index 66d9ada..68908b6 100644
--- a/.github/workflows/quality.yml
+++ b/.github/workflows/quality.yml
@@ -9,7 +9,7 @@ jobs:
     name: GolangCI
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.3.4
       - name: GolangCI
         uses: golangci/golangci-lint-action@v2.5.2
         with:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 016c547..bac2636 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
         with:
           fetch-depth: 0