diff --git a/pom.xml b/pom.xml
index fc2bec7..065fd11 100644
--- a/pom.xml
+++ b/pom.xml
@@ -122,6 +122,24 @@
       <scope>provided</scope>
     </dependency>
     <dependency>
+      <groupId>com.google.code.gson</groupId>
+      <artifactId>gson</artifactId>
+      <version>2.1</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>commons-lang</groupId>
+      <artifactId>commons-lang</artifactId>
+      <version>2.5</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>commons-codec</groupId>
+      <artifactId>commons-codec</artifactId>
+      <version>1.4</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
       <groupId>com.rabbitmq</groupId>
       <artifactId>amqp-client</artifactId>
       <version>3.2.2</version>