diff --git a/.github/workflows/docker.build.yml b/.github/workflows/docker.build.yml
index 78083fdc..41a16be5 100644
--- a/.github/workflows/docker.build.yml
+++ b/.github/workflows/docker.build.yml
@@ -14,7 +14,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
       -
         name: Docker meta
         id: docker_meta
diff --git a/.github/workflows/docker.lint.yml b/.github/workflows/docker.lint.yml
index 047204c7..ee441e2d 100644
--- a/.github/workflows/docker.lint.yml
+++ b/.github/workflows/docker.lint.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps: 
     - name: Checkout
-      uses: actions/checkout@master
+      uses: actions/checkout@v2.3.4
     - name: lint
       uses: luke142367/Docker-Lint-Action@v1.1.1
       with: