diff --git a/pom.xml b/pom.xml
index 2443cce..7972110 100644
--- a/pom.xml
+++ b/pom.xml
@@ -65,7 +65,7 @@
         <portlet-utils.version>1.1.0</portlet-utils.version>
         <resource-server.version>1.0.27</resource-server.version>
         <servlet-api.version>2.5</servlet-api.version>
-        <spring.version>3.1.3.RELEASE</spring.version>
+        <spring.version>5.2.20.RELEASE</spring.version>
         <spring-portlet-contrib.version>1.0.1</spring-portlet-contrib.version>
         <spring-ws.version>2.1.2.RELEASE</spring-ws.version>
         <spring-security.version>3.1.3.RELEASE</spring-security.version>