diff --git a/package.json b/package.json
index 39e4c8e..00fca51 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "main": "index.js",
   "dependencies": {
     "mongodb": "^3.1.13 || ^4.0.0 || ^5.0.0 || ^6.0.0",
-    "sharedb": "^1.9.1 || ^2.0.0 || ^3.0.0 || ^4.0.0 || ^5.0.0"
+    "sharedb": "share/sharedb#7b87fbc000b25ee6ac25c60510cf5da780f39ca4"
   },
   "devDependencies": {
     "async": "^3.2.4",