diff --git a/pom.xml b/pom.xml
index 2d7ccdb..6e337e8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,7 +19,7 @@
         <java.version>1.8</java.version>
         <maven-jar-plugin.version>3.1.1</maven-jar-plugin.version>
         <druid.version>1.2.2</druid.version>
-        <bitwalker.version>1.19</bitwalker.version>
+        <bitwalker.version>1.21</bitwalker.version>
         <swagger.version>2.9.2</swagger.version>
 		<kaptcha.version>2.3.2</kaptcha.version>
         <pagehelper.boot.version>1.3.0</pagehelper.boot.version>