diff --git a/.github/workflows/static.yml b/.github/workflows/static.yml
index 32e2c35..ae5af1f 100644
--- a/.github/workflows/static.yml
+++ b/.github/workflows/static.yml
@@ -13,12 +13,12 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3
       with:
         fetch-depth: 0
 
     - name: Setup PHP
-      uses: shivammathur/setup-php@v2
+      uses: shivammathur/setup-php@accd6127cb78bee3e8082180cb391013d204ef9f # v2
       with:
         php-version: 8.2
         tools: composer:v2
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 9676b96..f6fcdb8 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -16,12 +16,12 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3
       with:
         fetch-depth: 0
 
     - name: Setup PHP
-      uses: shivammathur/setup-php@v2
+      uses: shivammathur/setup-php@accd6127cb78bee3e8082180cb391013d204ef9f # v2
       with:
         php-version: ${{ matrix.php }}
         tools: composer:v2