diff --git a/server/mongod.conf b/server/mongod.conf
index 8846ab8..a53f828 100644
--- a/server/mongod.conf
+++ b/server/mongod.conf
@@ -1,6 +1,9 @@
 storage:
     engine: wiredTiger
     dbPath: /etc/mongo/db/
+    wiredTiger:
+        engineConfig:
+            cacheSizeGB: 0.25
 
 security:
     authorization: enabled