diff --git a/examples/cassandra/image/cassandra.list b/examples/cassandra/image/cassandra.list
index 832c02ab436..f82805c7aa1 100644
--- a/examples/cassandra/image/cassandra.list
+++ b/examples/cassandra/image/cassandra.list
@@ -1,5 +1,5 @@
-deb http://www.apache.org/dist/cassandra/debian 35x main
-deb-src http://www.apache.org/dist/cassandra/debian 35x main
+deb http://www.apache.org/dist/cassandra/debian 34x main
+deb-src http://www.apache.org/dist/cassandra/debian 34x main
 
 # for jre8
 deb http://http.debian.net/debian jessie-backports main