diff --git a/edx-lti-db-service/pom.xml b/edx-lti-db-service/pom.xml
index 6ef5bfb..9cb2493 100644
--- a/edx-lti-db-service/pom.xml
+++ b/edx-lti-db-service/pom.xml
@@ -114,7 +114,7 @@
         <dependency>
             <groupId>org.postgresql</groupId>
             <artifactId>postgresql</artifactId>
-            <version>42.2.5</version>
+            <version>42.4.1</version>
         </dependency>
         <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-dbcp2 -->
         <dependency>