diff --git a/pom.xml b/pom.xml
index d7a32ee..a27d04d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -203,7 +203,7 @@
     <dependency>
       <groupId>org.apache.zookeeper</groupId>
       <artifactId>zookeeper</artifactId>
-      <version>3.5.9</version>
+      <version>3.7.2</version>
       <scope>compile</scope>
       <exclusions>
         <!-- these deps are actually optional -->