diff --git a/docker/middleware.env.example b/docker/middleware.env.example
index 2437026eec..ba6859885b 100644
--- a/docker/middleware.env.example
+++ b/docker/middleware.env.example
@@ -109,7 +109,7 @@ EXPOSE_PLUGIN_DEBUGGING_HOST=localhost
 EXPOSE_PLUGIN_DEBUGGING_PORT=5003
 
 PLUGIN_DIFY_INNER_API_KEY=QaHbTe77CtuXmsfyhR7+vRjI/+XbV1AaFy691iy+kGDv2Jvy0/eAh8Y1
-PLUGIN_DIFY_INNER_API_URL=http://api:5001
+PLUGIN_DIFY_INNER_API_URL=http://host.docker.internal:5001
 
 MARKETPLACE_ENABLED=true
 MARKETPLACE_API_URL=https://marketplace.dify.ai