diff --git a/core/drupalci.yml b/core/drupalci.yml
index a9e161643f..2aa65e6413 100644
--- a/core/drupalci.yml
+++ b/core/drupalci.yml
@@ -15,7 +15,7 @@ build:
         sniff-all-files: false
         halt-on-fail: false
       container_command:
-        commands: "cd ${SOURCE_DIR} && rm -rf vendor/drupal/coder && composer update -n --prefer-lowest --no-progress"
+        commands: "cd ${SOURCE_DIR} && rm -rf vendor/drupal/coder && composer update -n --prefer-lowest --no-progress --apcu-autoloader"
     testing:
       # run_tests task is executed several times in order of performance speeds.
       # halt-on-fail can be set on the run_tests tasks in order to fail fast.