diff --git a/server/apps/scaling-pulsar-smtp/pom.xml b/server/apps/scaling-pulsar-smtp/pom.xml
index b056eb0c852..7246697515f 100644
--- a/server/apps/scaling-pulsar-smtp/pom.xml
+++ b/server/apps/scaling-pulsar-smtp/pom.xml
@@ -184,7 +184,7 @@
         <dependency>
             <groupId>org.postgresql</groupId>
             <artifactId>postgresql</artifactId>
-            <version>42.3.8</version>
+            <version>42.6.1</version>
         </dependency>
         <dependency>
             <groupId>org.testcontainers</groupId>