diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 3ee949547..c849fe80b 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -52,9 +52,6 @@ jobs:
         php-version:
           - "7.4"
           - "8.0"
-        dependencies:
-          - lowest
-          - highest
 
     steps:
       - name: "Configure git to avoid issues with line endings"
@@ -85,15 +82,10 @@ jobs:
         uses: actions/cache@v2
         with:
           path: ${{ env.COMPOSER_CACHE_DIR }}
-          key: php${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('**/composer.json') }}
-          restore-keys: php${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-
+          key: php${{ matrix.php-version }}-composer-${{ hashFiles('**/composer.json') }}
+          restore-keys: php${{ matrix.php-version }}-composer-
 
-      - name: "Install lowest dependencies with composer"
-        if: matrix.dependencies == 'lowest'
-        run: composer update --no-ansi --no-interaction --no-progress --no-suggest --prefer-lowest
-
-      - name: "Install highest dependencies with composer"
-        if: matrix.dependencies == 'highest'
+      - name: "Install dependencies with composer"
         run: composer update --no-ansi --no-interaction --no-progress --no-suggest
 
       - name: "Run tests with phpunit"