diff --git a/.github/workflows/backward-compatibility-check.yml b/.github/workflows/backward-compatibility-check.yml
index 3afd29e..04c46e8 100644
--- a/.github/workflows/backward-compatibility-check.yml
+++ b/.github/workflows/backward-compatibility-check.yml
@@ -34,11 +34,11 @@ jobs:
           ini-values: memory_limit=-1
           extensions: pdo_sqlite, bcmath, intl, sodium
 
-      - 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 b94ccb3..0ee8616 100644
--- a/.github/workflows/coding-standard.yml
+++ b/.github/workflows/coding-standard.yml
@@ -36,7 +36,7 @@ jobs:
                   ini-values: memory_limit=-1, opcache.enable_cli=1
                   extensions: pdo_sqlite
 
-            - 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 6355ac3..8e6f3f0 100644
--- a/.github/workflows/mutation-tests.yml
+++ b/.github/workflows/mutation-tests.yml
@@ -36,7 +36,7 @@ jobs:
                   ini-values: memory_limit=-1
                   extensions: pdo_sqlite
 
-            - 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 5f370ca..fba0823 100644
--- a/.github/workflows/phpstan.yml
+++ b/.github/workflows/phpstan.yml
@@ -36,7 +36,7 @@ jobs:
                   ini-values: memory_limit=-1, opcache.enable_cli=1
                   extensions: pdo_sqlite
 
-            - 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 d407268..ed0714a 100644
--- a/.github/workflows/unit.yml
+++ b/.github/workflows/unit.yml
@@ -48,7 +48,7 @@ jobs:
                   ini-values: memory_limit=-1
                   extensions: pdo_sqlite
 
-            - uses: ramsey/composer-install@3.2.1
+            - uses: ramsey/composer-install@4.0.0
               with:
                 dependency-versions: ${{ matrix.dependencies }}