diff --git a/.github/workflows/analyze.yml b/.github/workflows/analyze.yml
index debf364..2446a4a 100644
--- a/.github/workflows/analyze.yml
+++ b/.github/workflows/analyze.yml
@@ -32,7 +32,7 @@ jobs:
         php-versions: ['7.3', '7.4', '8.0']
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 544e63d..4cffad8 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -22,7 +22,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v2.3.4
 
       - name: Setup PHP, with composer and extensions
         uses: shivammathur/setup-php@v2