diff --git a/synapse_invite_checker/invite_checker.py b/synapse_invite_checker/invite_checker.py
index a2694fe..b0862cb 100644
--- a/synapse_invite_checker/invite_checker.py
+++ b/synapse_invite_checker/invite_checker.py
@@ -28,7 +28,7 @@ class InviteChecker:
         self.use_allowlist = self.config.use_allowlist
         self.use_blocklist = self.config.use_blocklist
 
-        self.cache_expiry_time = 300
+        self.cache_expiry_time = 60
         self.cache_timestamp = 0
         self.blocklist = set()
         self.allowlist = set()