diff --git a/cloud-sql/postgres/servlet/pom.xml b/cloud-sql/postgres/servlet/pom.xml
index 28c2a6d1f0b..f37b0827a15 100644
--- a/cloud-sql/postgres/servlet/pom.xml
+++ b/cloud-sql/postgres/servlet/pom.xml
@@ -52,7 +52,7 @@
     <dependency>
       <groupId>org.postgresql</groupId>
       <artifactId>postgresql</artifactId>
-      <version>42.4.1</version>
+      <version>42.4.3</version>
     </dependency>
     <dependency>
       <groupId>com.google.cloud.sql</groupId>