diff --git a/miscellaneous/red5-pro-simpleauth-custom-validator/pom.xml b/miscellaneous/red5-pro-simpleauth-custom-validator/pom.xml
index b4cee3b..9b50077 100644
--- a/miscellaneous/red5-pro-simpleauth-custom-validator/pom.xml
+++ b/miscellaneous/red5-pro-simpleauth-custom-validator/pom.xml
@@ -20,7 +20,7 @@
         <slf4j.version>1.7.21</slf4j.version>
         <logback.version>1.1.6</logback.version>
         <mina.version>[2.0.13,2.0.16)</mina.version>
-        <spring.version>4.2.5.RELEASE</spring.version>
+        <spring.version>5.2.20.RELEASE</spring.version>
         <commons.io.version>1.3.2</commons.io.version>
         <commons.chain.version>1.2</commons.chain.version>
         <red5pro-simple-auth.version>3.4.4</red5pro-simple-auth.version>