diff --git a/lake/lake.go b/lake/lake.go
index 899717c..65afcce 100644
--- a/lake/lake.go
+++ b/lake/lake.go
@@ -15,7 +15,7 @@ import (
 )
 
 const (
-	MaxTopicIDLen = 30
+	MaxTopicIDLen = 64
 	MinTopicIDLen = 1
 
 	RandomSubscriberIDLen = 10