diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 67ae333..27f13d0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,7 +29,7 @@ jobs:
           coverage: none
 
       - name: Install dependencies
-        uses: ramsey/composer-install@v3
+        uses: ramsey/composer-install@v4
 
       - name: Run test suite
         run: composer test
@@ -45,7 +45,7 @@ jobs:
           extensions: ffi
           ini-values: ffi.enable=1, zend.assertions=1, opcache.jit=off
           coverage: none
-      - uses: ramsey/composer-install@v3
+      - uses: ramsey/composer-install@v4
       - run: composer phpstan
 
   coding-standards:
@@ -59,5 +59,5 @@ jobs:
           extensions: ffi
           ini-values: ffi.enable=1, zend.assertions=1, opcache.jit=off
           coverage: none
-      - uses: ramsey/composer-install@v3
+      - uses: ramsey/composer-install@v4
       - run: composer cs:check