diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 1b8f0bd..e1d74e6 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -9,7 +9,7 @@ jobs:
   generate:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # tag=v3
       - name: Installing Node.js v16
         uses: actions/setup-node@v2
         with:
diff --git a/.github/workflows/push.yml b/.github/workflows/push.yml
index 76640c3..3eadc94 100644
--- a/.github/workflows/push.yml
+++ b/.github/workflows/push.yml
@@ -9,7 +9,7 @@ jobs:
   push:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # tag=v3
       - name: Installing Node.js v14
         uses: actions/setup-node@v2
         with:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 781cdd6..9cfabb9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -4,7 +4,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # tag=v3
     - name: Installing Node.js v16
       uses: actions/setup-node@v2
       with: