diff --git a/pom.xml b/pom.xml
index 0be84fa..51b2606 100644
--- a/pom.xml
+++ b/pom.xml
@@ -55,7 +55,7 @@
         <add.classpath>true</add.classpath>
         <springfox.version>2.5.0</springfox.version>
         <spring.boot.version>1.4.2.RELEASE</spring.boot.version>
-        <spring.version>5.2.0.RELEASE</spring.version>
+        <spring.version>5.2.21.RELEASE</spring.version>
         <powermock.version>1.6.2</powermock.version>
         <jackson.version>2.8.3</jackson.version>
     </properties>