diff --git a/.ci/docker-compose-ci.yml b/.ci/docker-compose-ci.yml
index a4eea4452e8..e083e5e42fb 100644
--- a/.ci/docker-compose-ci.yml
+++ b/.ci/docker-compose-ci.yml
@@ -50,12 +50,11 @@ services:
       - ../course_discovery/assets:/edx/var/discovery/staticfiles
     command: tail -f /dev/null
     depends_on:
-      - "mysql57"
       - "mysql80"
       - "es"
       - "memcached"
     environment:
-      CACHE_BACKEND: "django.core.cache.backends.memcached.MemcachedCache"
+      CACHE_BACKEND: "django.core.cache.backends.memcached.PyMemcachedCache"
       CACHE_LOCATION: "memcached:11211"
       CONN_MAX_AGE: 60
       DB_ENGINE: "django.db.backends.mysql"