diff --git a/pkgs/servers/nosql/cassandra/2.1.nix b/pkgs/servers/nosql/cassandra/2.1.nix
index cac8eb3fba81..d0f70a554f7e 100644
--- a/pkgs/servers/nosql/cassandra/2.1.nix
+++ b/pkgs/servers/nosql/cassandra/2.1.nix
@@ -11,8 +11,8 @@
 
 let
 
-  version = "2.1.12";
-  sha256 = "0ngibzw7lx2nppzsq5hn6adbkyzns6bnhsrkllqpimyjf27sjfq1";
+  version = "2.1.13";
+  sha256 = "09b3vf5jsv70xlfimj30v8l1zw7c5xdgpw5fpmn6jh8n3gigybqh";
 
 in