diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8b950e4..d6f1a4d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -32,7 +32,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.0
       -
         name: Download file
         id: download
diff --git a/.github/workflows/labels.yml b/.github/workflows/labels.yml
index 294c3b7..bbf152b 100644
--- a/.github/workflows/labels.yml
+++ b/.github/workflows/labels.yml
@@ -14,7 +14,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.0
       -
         name: Run Labeler
         if: success()
diff --git a/.github/workflows/pre-checkin.yml b/.github/workflows/pre-checkin.yml
index 38808c1..b306623 100644
--- a/.github/workflows/pre-checkin.yml
+++ b/.github/workflows/pre-checkin.yml
@@ -14,7 +14,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.0
       -
         name: Install
         run: yarn install
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a85e3bc..327916d 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -23,7 +23,7 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.0
       -
         name: Install
         run: yarn install