diff --git a/package.json b/package.json
index 636d112..65db816 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     },
     "dependencies" : {
         "bindings" : "*",
-        "nan" : "*"
+        "nan" : "1"
     },
     "keywords": [
         "scrypt",