diff --git a/pom.xml b/pom.xml
index 8af61ee..81fd4ff 100644
--- a/pom.xml
+++ b/pom.xml
@@ -47,7 +47,7 @@
         <servlet.version>2.5</servlet.version>
         <slf4j.version>1.7.6</slf4j.version>
         <junit.version>4.12</junit.version>
-        <spring.version>5.1.2.RELEASE</spring.version>
+        <spring.version>5.2.21.RELEASE</spring.version>
         <spring.boot.version>2.1.0.RELEASE</spring.boot.version>
 
         <mysql.version>5.1.22</mysql.version>