diff --git a/pn-sync/pom.xml b/pn-sync/pom.xml
index 00e57aa6..2e152ccd 100644
--- a/pn-sync/pom.xml
+++ b/pn-sync/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>net.sf.saxon</groupId>