diff --git a/pom.xml b/pom.xml
index 612a45dd5a..c3a4feffd2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -29,7 +29,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <java.codelevel>1.8</java.codelevel>
     <spring.version>4.3.30.RELEASE</spring.version>                                 <!-- checked 2020-08, further upgrade possible -->
-    <spring-security.version>4.2.20.RELEASE</spring-security.version>               <!-- checked 2020-08, further upgrade possible -->
+    <spring-security.version>5.5.7</spring-security.version>               <!-- checked 2020-08, further upgrade possible -->
     <spring-security-oauth2.version>2.5.2.RELEASE</spring-security-oauth2.version>  <!-- checked 2020-08 -->
     <spring-cloud.version>1.1.3.RELEASE</spring-cloud.version>
 	<hibernate.version>5.4.33.Final</hibernate.version>