diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e6bb324..b3e3608 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,7 +41,7 @@ jobs:
           coverage: none
 
       - name: Composer Install
-        uses: ramsey/composer-install@a8d0d959dab41457692a5e2041bd9b757a119e3f # 3.2.1
+        uses: ramsey/composer-install@65e4f84970763564f46a70b8a54b90d033b3bdda # 4.0.0
         with:
           custom-cache-key: composer-${{ runner.os }}-${{ hashFiles('**/composer.json') }}
 
@@ -70,7 +70,7 @@ jobs:
           coverage: none
 
       - name: Composer Install
-        uses: ramsey/composer-install@a8d0d959dab41457692a5e2041bd9b757a119e3f # 3.2.1
+        uses: ramsey/composer-install@65e4f84970763564f46a70b8a54b90d033b3bdda # 4.0.0
         with:
           custom-cache-key: composer-${{ runner.os }}-${{ hashFiles('**/composer.json') }}
 
@@ -98,7 +98,7 @@ jobs:
           coverage: xdebug
 
       - name: Composer Install
-        uses: ramsey/composer-install@a8d0d959dab41457692a5e2041bd9b757a119e3f # 3.2.1
+        uses: ramsey/composer-install@65e4f84970763564f46a70b8a54b90d033b3bdda # 4.0.0
         with:
           custom-cache-key: composer-${{ runner.os }}-${{ hashFiles('**/composer.json') }}
 
@@ -143,7 +143,7 @@ jobs:
           coverage: none
 
       - name: Composer Install
-        uses: ramsey/composer-install@a8d0d959dab41457692a5e2041bd9b757a119e3f # 3.2.1
+        uses: ramsey/composer-install@65e4f84970763564f46a70b8a54b90d033b3bdda # 4.0.0
         with:
           custom-cache-key: composer-${{ matrix.os }}-php-${{ matrix.php-version }}-${{ hashFiles('**/composer.json') }}