diff --git a/.github/workflows/backward-compatibility-check.yml b/.github/workflows/backward-compatibility-check.yml
index b761776..d72aa01 100644
--- a/.github/workflows/backward-compatibility-check.yml
+++ b/.github/workflows/backward-compatibility-check.yml
@@ -32,11 +32,11 @@ jobs:
           php-version: "${{ matrix.php-version }}"
           ini-values: memory_limit=-1
 
-      - uses: ramsey/composer-install@3.2.1
+      - uses: ramsey/composer-install@4.0.0
         with:
           dependency-versions: ${{ matrix.dependencies }}
 
-      - uses: ramsey/composer-install@3.2.1
+      - uses: ramsey/composer-install@4.0.0
         with:
           dependency-versions: ${{ matrix.dependencies }}
           working-directory: 'tools'
diff --git a/.github/workflows/coding-standard.yml b/.github/workflows/coding-standard.yml
index 9bc66e9..5f58947 100644
--- a/.github/workflows/coding-standard.yml
+++ b/.github/workflows/coding-standard.yml
@@ -34,7 +34,7 @@ jobs:
                   php-version: "${{ matrix.php-version }}"
                   ini-values: memory_limit=-1
 
-            - uses: ramsey/composer-install@3.2.1
+            - uses: ramsey/composer-install@4.0.0
               with:
                 dependency-versions: ${{ matrix.dependencies }}
 
diff --git a/.github/workflows/mutation-tests-diff.yml b/.github/workflows/mutation-tests-diff.yml
index d4efaea..10e4c2b 100644
--- a/.github/workflows/mutation-tests-diff.yml
+++ b/.github/workflows/mutation-tests-diff.yml
@@ -33,7 +33,7 @@ jobs:
                   php-version: "${{ matrix.php-version }}"
                   ini-values: memory_limit=-1
 
-            - uses: ramsey/composer-install@3.2.1
+            - uses: ramsey/composer-install@4.0.0
               with:
                 dependency-versions: ${{ matrix.dependencies }}
 
diff --git a/.github/workflows/mutation-tests.yml b/.github/workflows/mutation-tests.yml
index 45f9efb..2281050 100644
--- a/.github/workflows/mutation-tests.yml
+++ b/.github/workflows/mutation-tests.yml
@@ -35,7 +35,7 @@ jobs:
                   php-version: "${{ matrix.php-version }}"
                   ini-values: memory_limit=-1
 
-            - uses: ramsey/composer-install@3.2.1
+            - uses: ramsey/composer-install@4.0.0
               with:
                 dependency-versions: ${{ matrix.dependencies }}
 
diff --git a/.github/workflows/phpstan.yml b/.github/workflows/phpstan.yml
index d2f962e..4317496 100644
--- a/.github/workflows/phpstan.yml
+++ b/.github/workflows/phpstan.yml
@@ -34,7 +34,7 @@ jobs:
                   php-version: "${{ matrix.php-version }}"
                   ini-values: memory_limit=-1
 
-            - uses: ramsey/composer-install@3.2.1
+            - uses: ramsey/composer-install@4.0.0
               with:
                 dependency-versions: ${{ matrix.dependencies }}
 
diff --git a/.github/workflows/unit.yml b/.github/workflows/unit.yml
index bfcc5ba..a2cbb54 100644
--- a/.github/workflows/unit.yml
+++ b/.github/workflows/unit.yml
@@ -46,7 +46,7 @@ jobs:
                   php-version: "${{ matrix.php-version }}"
                   ini-values: memory_limit=-1
 
-            - uses: ramsey/composer-install@3.2.1
+            - uses: ramsey/composer-install@4.0.0
               with:
                 dependency-versions: ${{ matrix.dependencies }}