diff --git a/tools/java/embedded-zookeeper/pom.xml b/tools/java/embedded-zookeeper/pom.xml
index 463dad9..26246f1 100644
--- a/tools/java/embedded-zookeeper/pom.xml
+++ b/tools/java/embedded-zookeeper/pom.xml
@@ -35,7 +35,7 @@
         <maven.compiler.target>1.8</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
-        <zookeeper.version>3.9.2</zookeeper.version>
+        <zookeeper.version>3.9.4</zookeeper.version>
         <log4j2.version>2.20.0</log4j2.version>
     </properties>