diff --git a/mqtt/pom.xml b/mqtt/pom.xml
index c0cecc1..fbce5f0 100644
--- a/mqtt/pom.xml
+++ b/mqtt/pom.xml
@@ -132,7 +132,7 @@
         <dependency>
             <groupId>org.apache.mina</groupId>
             <artifactId>mina-core</artifactId>
-            <version>${mina.version}</version>
+            <version>2.0.21</version>
             <type>bundle</type>
         </dependency>
         <dependency>