diff --git a/ui/pom.xml b/ui/pom.xml
index 23c934a..d107dfa 100644
--- a/ui/pom.xml
+++ b/ui/pom.xml
@@ -48,7 +48,7 @@
     </build>
 
     <properties>
-        <spring.version>3.5.7</spring.version>
+        <spring.version>4.0.0</spring.version>
         <doss.version>1.7.6</doss.version>
         <tika.version>3.2.3</tika.version>
     </properties>