diff --git a/nanopart-server/pom.xml b/nanopart-server/pom.xml
index 50fd8844..f37d6137 100644
--- a/nanopart-server/pom.xml
+++ b/nanopart-server/pom.xml
@@ -145,6 +145,18 @@
             <version>2.0.0-SNAPSHOT</version>
         </dependency>
 
+        <dependency>
+            <groupId>cn.axzo.nanopart</groupId>
+            <artifactId>ess-api</artifactId>
+            <version>2.0.0-SNAPSHOT</version>
+        </dependency>
+
+        <dependency>
+            <groupId>cn.axzo.nanopart</groupId>
+            <artifactId>ess-server</artifactId>
+            <version>2.0.0-SNAPSHOT</version>
+        </dependency>
+
         <dependency>
             <groupId>cn.axzo.im.center</groupId>
             <artifactId>im-center-api</artifactId>