diff --git a/pom.xml b/pom.xml
index 68007f1..32dc02b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -50,7 +50,7 @@
 
     <solr-version>4.10.3</solr-version>
 
-    <spring-version>3.1.1.RELEASE</spring-version>
+    <spring-version>5.2.20.RELEASE</spring-version>
   </properties>
 
   <dependencies>