diff --git a/moon.mod.json b/moon.mod.json
index 5fb5da9..9dc5b42 100644
--- a/moon.mod.json
+++ b/moon.mod.json
@@ -4,6 +4,7 @@
   "deps": {
     "gmlewis/jsonutil": "0.22.0"
   },
+  "__mark__": "gmlewis/jsonutil is not available!!!",
   "readme": "README.md",
   "repository": "https://github.com/extism/moonbit-pdk",
   "license": "Apache-2.0",
@@ -13,4 +14,4 @@
     "moonbit"
   ],
   "description": "Extism MoonBit PDK: This library can be used to write Extism Plug-ins in MoonBit."
-}
\ No newline at end of file
+}