| diff --git b/horizon/values.yaml a/charts/horizon/values.yaml | |
| index 8cfaf5b4..36de4ee3 100644 | |
| --- b/horizon/values.yaml | |
| +++ a/horizon/values.yaml | |
| @@ -385,7 +385,7 @@ conf: | |
| CACHES = { | |
| 'default': { | |
| - 'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache', | |
| + 'BACKEND': 'django.core.cache.backends.memcached.PyMemcacheCache', | |
| 'LOCATION': '{{ tuple "oslo_cache" "internal" "memcache" . | include "helm-toolkit.endpoints.host_and_port_endpoint_uri_lookup" }}', | |
| } | |
| } |