diff --git a/.github/workflows/docker-image.yml b/.github/workflows/docker-image.yml
index ced56c0..8777189 100644
--- a/.github/workflows/docker-image.yml
+++ b/.github/workflows/docker-image.yml
@@ -13,6 +13,6 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v2.3.4
     - name: Build the Docker image
       run: docker build . --file Dockerfile --tag yosoy-local:$(date +%s)
diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 6f6cfd5..4047a0f 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -11,7 +11,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v2.3.4
 
     - name: Set up Go
       uses: actions/setup-go@v2