diff --git a/site-sources.json b/site-sources.json
index 7855ccb..41346e7 100644
--- a/site-sources.json
+++ b/site-sources.json
@@ -9,7 +9,7 @@
   },
   "contracts": {
     "repository": "mdbase-dev/mdbase-contracts",
-    "ref": "39aa022e5b94531b88a7b3e323e285aa06dd41b4"
+    "ref": "86cf9c7715a50358c07c6d730a4b50da3f4881c8"
   },
   "implementations": [
     {