diff --git a/tests/docker/php/entrypoint.sh b/tests/docker/php/entrypoint.sh
index b05c5f13..8faba712 100755
--- a/tests/docker/php/entrypoint.sh
+++ b/tests/docker/php/entrypoint.sh
@@ -2,7 +2,7 @@
 
 set -eu
 
-#flock tests/runtime/composer-install.lock composer update --prefer-dist --no-interaction --no-progress --optimize-autoloader --ansi
+flock tests/runtime/composer-install.lock composer update --prefer-dist --no-interaction --no-progress --optimize-autoloader --ansi
 
 php --version
 set -x