diff --git a/pom.xml b/pom.xml
index 06a9bf0..557201c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -10,7 +10,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <spring.version>5.1.0.RELEASE</spring.version>
+        <spring.version>5.2.21.RELEASE</spring.version>
         <spring.ldap.version>2.0.2.RELEASE</spring.ldap.version>
         <spring.security.version>3.2.2.RELEASE</spring.security.version>
         <hibernate.version>5.3.6.Final</hibernate.version>