diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index 0280805..2e95b80 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -38,6 +38,8 @@ jobs:
 
       - name: "Install dependencies (Composer)"
         uses: "ramsey/composer-install@v3"
+        with:
+          dependency-versions: "highest"
 
       - name: "Check syntax (php-parallel-lint)"
         run: "composer dev:lint:syntax"
@@ -61,6 +63,8 @@ jobs:
 
       - name: "Install dependencies (Composer)"
         uses: "ramsey/composer-install@v3"
+        with:
+          dependency-versions: "highest"
 
       - name: "Statically analyze code (PHPStan)"
         run: "composer dev:analyze:phpstan"
@@ -132,6 +136,8 @@ jobs:
 
       - name: "Install dependencies (Composer)"
         uses: "ramsey/composer-install@v3"
+        with:
+          dependency-versions: "highest"
 
       - name: "Run unit tests (PHPUnit)"
         run: "composer dev:test:coverage:ci"