diff --git a/mod-pubsub-server/pom.xml b/mod-pubsub-server/pom.xml
index 4a0c2c11..ea5359a7 100644
--- a/mod-pubsub-server/pom.xml
+++ b/mod-pubsub-server/pom.xml
@@ -68,7 +68,7 @@
     <dependency>
       <groupId>org.postgresql</groupId>
       <artifactId>postgresql</artifactId>
-      <version>42.5.4</version>
+      <version>42.5.5</version>
     </dependency>
     <dependency>
       <groupId>com.fasterxml.jackson.module</groupId>