update org.apache.commons:commons-dbcp2 2.1.1 to 2.9.0
diff --git a/demo/saga-dubbo-demo/pom.xml b/demo/saga-dubbo-demo/pom.xml
index a21ffd7..dfa99a7 100644
--- a/demo/saga-dubbo-demo/pom.xml
+++ b/demo/saga-dubbo-demo/pom.xml
@@ -77,7 +77,7 @@
     <dependency>
       <groupId>org.apache.commons</groupId>
       <artifactId>commons-dbcp2</artifactId>
-      <version>2.1.1</version>
+      <version>2.9.0</version>
     </dependency>
     <!--<dependency>
         <groupId>mysql</groupId>