diff --git a/demo/layering-cache-start-demo/pom.xml b/demo/layering-cache-start-demo/pom.xml
index b830700..1a09dbf 100644
--- a/demo/layering-cache-start-demo/pom.xml
+++ b/demo/layering-cache-start-demo/pom.xml
@@ -59,7 +59,7 @@
         <dependency>
             <groupId>com.squareup.okhttp3</groupId>
             <artifactId>okhttp</artifactId>
-            <version>3.6.0</version>
+            <version>4.9.2</version>
         </dependency>