diff --git a/backend/src/persistence.py b/backend/src/persistence.py
index 21f41d6..033c028 100644
--- a/backend/src/persistence.py
+++ b/backend/src/persistence.py
@@ -1,4 +1,5 @@
 from pymemcache.client.base import Client
+from pymemcache import serde
 
 import constants
 
@@ -22,5 +23,6 @@ else:
         constants.MEMCACHED_HOST_PATH,
         timeout=1,
         allow_unicode_keys=True,
-        encoding='utf-8'
+        encoding='utf-8',
+        serde=serde.pickle_serde
     )