Fixed zk version

@@ -39,7 +39,7 @@ services:
     volumes:
       - "${CASSANDRA_DATA_DIR}:/var/lib/cassandra"
   zk:
-    image: "zookeeper:3.4.9"
+    image: "zookeeper:3.4.10"
     ports:
       - "2181"
     restart: always

@@ -22,7 +22,7 @@ ZK_LOG_DIR=/var/log/zookeeper \
 JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
 
 ARG GPG_KEY=C823E3E5B12AF29C67F81976F5CECB3CB5E9BD2D
-ARG ZK_DIST=zookeeper-3.4.9
+ARG ZK_DIST=zookeeper-3.4.10
 RUN set -x \
     && apt-get update \
     && apt-get install -y openjdk-8-jre-headless wget netcat-openbsd \