diff --git a/zookeeper/3.4/Dockerfile b/zookeeper/3.4/Dockerfile
index a411708..e7bf484 100644
--- a/zookeeper/3.4/Dockerfile
+++ b/zookeeper/3.4/Dockerfile
@@ -14,7 +14,7 @@ RUN buildDeps=' \
 	&& apk --no-cache add --virtual build-deps $buildDeps \
 	&& echo "==> Downloading Zookeeper..." \
 	&& mkdir -p /opt \
-	&& curl -sSL http://apache.mirrors.pair.com/zookeeper/zookeeper-${ZOOKEEPER_VERSION}/zookeeper-${ZOOKEEPER_VERSION}.tar.gz | tar -xzf - -C /opt \
+	&& curl -sSL "http://apache.mirrors.pair.com/zookeeper/zookeeper-${ZOOKEEPER_VERSION}/zookeeper-${ZOOKEEPER_VERSION}.tar.gz" | tar -xzf - -C /opt \
 	&& mv /opt/zookeeper-${ZOOKEEPER_VERSION} /opt/zookeeper \
 	&& cp /opt/zookeeper/conf/zoo_sample.cfg /opt/zookeeper/conf/zoo.cfg \
 	&& apk del build-deps
diff --git a/zookeeper/3.5/Dockerfile b/zookeeper/3.5/Dockerfile
index 20cde48..f599a3d 100644
--- a/zookeeper/3.5/Dockerfile
+++ b/zookeeper/3.5/Dockerfile
@@ -1,6 +1,6 @@
 FROM java:8-alpine
 
-ENV ZOOKEEPER_VERSION 3.5.3
+ENV ZOOKEEPER_VERSION 3.5.3-beta
 ENV PATH $PATH:/opt/zookeeper/bin/
 
 # the start files for zookeeper use bash
@@ -14,7 +14,7 @@ RUN buildDeps=' \
 	&& apk --no-cache add --virtual build-deps $buildDeps \
 	&& echo "==> Downloading Zookeeper..." \
 	&& mkdir -p /opt \
-	&& curl -sSL http://apache.mirrors.pair.com/zookeeper/zookeeper-${ZOOKEEPER_VERSION}/zookeeper-${ZOOKEEPER_VERSION}.tar.gz | tar -xzf - -C /opt \
+	&& curl -sSL "http://apache.mirrors.pair.com/zookeeper/zookeeper-${ZOOKEEPER_VERSION}/zookeeper-${ZOOKEEPER_VERSION}.tar.gz" | tar -xf - -C /opt \
 	&& mv /opt/zookeeper-${ZOOKEEPER_VERSION} /opt/zookeeper \
 	&& cp /opt/zookeeper/conf/zoo_sample.cfg /opt/zookeeper/conf/zoo.cfg \
 	&& apk del build-deps