diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5e89f65..3586494 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,13 +18,13 @@ jobs:
 
         steps:
             - name: Set up PHP version ${{ matrix.php }}
-              uses: shivammathur/setup-php@7c071dfe9dc99bdf297fa79cb49ea005b9fcadbc # v2
+              uses: shivammathur/setup-php@7c071dfe9dc99bdf297fa79cb49ea005b9fcadbc # 2.37.1
               with:
                   php-version: ${{ matrix.php }}
                   tools: composer:v2, php-cs-fixer
 
             - name: Checkout repository
-              uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6
+              uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
               with:
                   persist-credentials: false