diff --git a/.github/workflows/static.yml b/.github/workflows/static.yml
index 2bfd4010..a71584c3 100644
--- a/.github/workflows/static.yml
+++ b/.github/workflows/static.yml
@@ -28,10 +28,10 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v6
+      uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
     - name: Setup PHP
-      uses: shivammathur/setup-php@v2
+      uses: shivammathur/setup-php@accd6127cb78bee3e8082180cb391013d204ef9f # v2
       with:
         php-version: 8.3
         tools: composer:v2
@@ -44,7 +44,7 @@ jobs:
       run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
 
     - name: Cache Composer dependencies
-      uses: actions/cache@v5
+      uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5
       with:
         path: ${{ steps.composer-cache.outputs.dir }}
         key: static-php-8.3-${{ matrix.dependency-version }}-composer-${{ hashFiles('**/composer.json', '**/composer.lock') }}