diff --git a/rust/basic_bitcoin/dfx.json b/rust/basic_bitcoin/dfx.json
index 9246f49ad..63498288c 100644
--- a/rust/basic_bitcoin/dfx.json
+++ b/rust/basic_bitcoin/dfx.json
@@ -26,5 +26,10 @@
       "packtool": "",
       "args": ""
     }
+  },
+  "networks": {
+    "local": {
+      "bind": "127.0.0.1:4943"
+    }
   }
 }
\ No newline at end of file