diff --git a/cloudsql-postgresql-plugin/pom.xml b/cloudsql-postgresql-plugin/pom.xml
index 4568f0209..197603cc8 100644
--- a/cloudsql-postgresql-plugin/pom.xml
+++ b/cloudsql-postgresql-plugin/pom.xml
@@ -100,7 +100,7 @@
     <dependency>
       <groupId>org.postgresql</groupId>
       <artifactId>postgresql</artifactId>
-      <version>42.3.1</version>
+      <version>42.4.1</version>
       <scope>test</scope>
     </dependency>
   </dependencies>