diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index e1af4dda..2ea9870c 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -47,6 +47,6 @@ jobs:
           php-version: ${{ matrix.php }}
           coverage: none # disable xdebug, pcov
 
-      - run: composer install --no-interaction --no-suggest --no-progress
+      - run: composer update --no-interaction --no-suggest --no-progress
 
       - run: vendor/bin/phpunit
diff --git a/.gitignore b/.gitignore
index a7267cbd..53c40962 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,4 @@ Documentation/.doctrees
 var/
 /release/
 release.sh
+composer.lock