diff --git a/example/pom.xml b/example/pom.xml
index 3baed9d..783e9f2 100644
--- a/example/pom.xml
+++ b/example/pom.xml
@@ -105,7 +105,7 @@
         <dependency>
             <groupId>org.postgresql</groupId>
             <artifactId>postgresql</artifactId>
-            <version>42.3.2</version>
+            <version>42.3.4</version>
         </dependency>
         <dependency>
             <groupId>redis.clients</groupId>