diff --git a/pom.xml b/pom.xml
index f77b2ad6..baa4fc95 100644
--- a/pom.xml
+++ b/pom.xml
@@ -108,7 +108,7 @@
         <project.scm.id>github</project.scm.id>
 
         <!-- Spring -->
-        <spring.version>4.0.6.RELEASE</spring.version>
+        <spring.version>5.2.21.RELEASE</spring.version>
         <spring.security.version>3.2.3.RELEASE</spring.security.version>
         <spring-security-oauth.version>2.0.2.RELEASE</spring-security-oauth.version>