diff --git a/arms-demo/mock-server/pom.xml b/arms-demo/mock-server/pom.xml
index 6570e35b..a61ee7fe 100644
--- a/arms-demo/mock-server/pom.xml
+++ b/arms-demo/mock-server/pom.xml
@@ -141,7 +141,7 @@
         <dependency>
             <groupId>com.squareup.retrofit2</groupId>
             <artifactId>retrofit</artifactId>
-            <version>2.3.0</version>
+            <version>2.5.0</version>
         </dependency>
         <dependency>
             <groupId>com.squareup.retrofit2</groupId>