diff --git a/.github/workflows/check.yaml b/.github/workflows/check.yaml
index 36143ab4..ca74df3d 100644
--- a/.github/workflows/check.yaml
+++ b/.github/workflows/check.yaml
@@ -66,7 +66,7 @@ jobs:
               uses: actions/checkout@v6
 
             - name: Install dependencies
-              uses: ramsey/composer-install@v2
+              uses: ramsey/composer-install@4.0.0
 
             - name: Check source code for syntax errors
               run: ./vendor/bin/pint --test
@@ -98,7 +98,7 @@ jobs:
                   tools: pecl, composer
 
             - name: Install Composer dependencies
-              uses: ramsey/composer-install@v2
+              uses: ramsey/composer-install@4.0.0
 
             - name: Install pnpm
               uses: pnpm/action-setup@v6
diff --git a/.github/workflows/docker.yaml b/.github/workflows/docker.yaml
index c81e8d5b..056e69a4 100644
--- a/.github/workflows/docker.yaml
+++ b/.github/workflows/docker.yaml
@@ -28,7 +28,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Install dependencies
-        uses: ramsey/composer-install@v2
+        uses: ramsey/composer-install@4.0.0
 
       - name: Check source code for syntax errors
         run: ./vendor/bin/pint --test
@@ -59,7 +59,7 @@ jobs:
           tools: pecl, composer
 
       - name: Install Composer dependencies
-        uses: ramsey/composer-install@v2
+        uses: ramsey/composer-install@4.0.0
 
       - name: Install pnpm
         uses: pnpm/action-setup@v6
@@ -100,7 +100,7 @@ jobs:
           coverage: none
 
       - name: Install Composer dependencies
-        uses: ramsey/composer-install@v2
+        uses: ramsey/composer-install@4.0.0
         with:
           composer-options: --no-dev