diff --git a/cassandra/Dockerfile b/cassandra/Dockerfile
old mode 100644
new mode 100755
index 7a6f9e08..bd4135de
--- a/cassandra/Dockerfile
+++ b/cassandra/Dockerfile
@@ -2,13 +2,9 @@ FROM itzg/ubuntu-openjdk-7
 
 MAINTAINER itzg
 
-RUN apt-get update && \
-  DEBIAN_FRONTEND=noninteractive apt-get install -y wget && \
-  apt-get clean
+ENV CASSANDRA_VERSION 2.1.8
 
-ENV CASSANDRA_VERSION 2.0.15
-
-RUN wget -qO /tmp/apache-cassandra.tgz http://mirrors.ibiblio.org/apache/cassandra/$CASSANDRA_VERSION/apache-cassandra-$CASSANDRA_VERSION-bin.tar.gz 
+RUN wget -qO /tmp/apache-cassandra.tgz http://mirrors.ibiblio.org/apache/cassandra/$CASSANDRA_VERSION/apache-cassandra-$CASSANDRA_VERSION-bin.tar.gz
 RUN tar -C /opt -zxvf /tmp/apache-cassandra.tgz && \
   rm /tmp/apache-cassandra.tgz