diff --git a/pom.xml b/pom.xml
index f7d2eacd0..5bbb012b3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -57,7 +57,7 @@
         <project.build.targetVersion>1.8</project.build.targetVersion>
 
         <jaxb2basicsVersion>0.12.0</jaxb2basicsVersion>
-        <springVersion>5.3.15</springVersion>
+        <springVersion>5.3.21</springVersion>
     </properties>
 
     <dependencyManagement>