diff --git a/test/testcontainers/pom.xml b/test/testcontainers/pom.xml
index e0cc5c2..3816e16 100644
--- a/test/testcontainers/pom.xml
+++ b/test/testcontainers/pom.xml
@@ -80,7 +80,7 @@
         <dependency>
             <groupId>org.apache.zookeeper</groupId>
             <artifactId>zookeeper</artifactId>
-            <version>3.9.3</version>
+            <version>3.9.4</version>
             <scope>test</scope>
             <exclusions>
                 <exclusion>