diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index e729109..cb0cd53 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -36,7 +36,7 @@ jobs:
           coverage: "none"
 
       - name: "Install dependencies (Composer)"
-        uses: "ramsey/composer-install@v3"
+        uses: "ramsey/composer-install@v4"
 
       - name: "Check syntax (php-parallel-lint)"
         shell: "bash"
@@ -60,7 +60,7 @@ jobs:
           coverage: "none"
 
       - name: "Install dependencies (Composer)"
-        uses: "ramsey/composer-install@v3"
+        uses: "ramsey/composer-install@v4"
 
       - name: "Statically analyze code (PHPStan)"
         shell: "bash"
@@ -86,7 +86,7 @@ jobs:
           ini-values: "memory_limit=-1"
 
       - name: "Install dependencies (Composer)"
-        uses: "ramsey/composer-install@v3"
+        uses: "ramsey/composer-install@v4"
 
       - name: "Run unit tests (PHPUnit)"
         shell: "bash"
@@ -134,7 +134,7 @@ jobs:
           coverage: "none"
 
       - name: "Install dependencies (Composer)"
-        uses: "ramsey/composer-install@v3"
+        uses: "ramsey/composer-install@v4"
         with:
           dependency-versions: "${{ matrix.dependencies }}"
           composer-options: "${{ matrix.composer-options }}"