diff --git a/pom.xml b/pom.xml
index 0dd5dd1..30edd36 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,7 +19,7 @@
         <dependency>
             <groupId>cn.violin</groupId>
             <artifactId>violin-core</artifactId>
-            <version>2.2</version>
+            <version>2.2.1-SNAPSHOT</version>
         </dependency>
 
         <dependency>