diff --git a/index.js b/index.js
index 4406008..b378986 100644
--- a/index.js
+++ b/index.js
@@ -1,6 +1,7 @@
 var leveljs = require('level-js');
 var levelup = require('levelup');
+var leveldown = require('leveldown');
 var fs = require('level-filesystem');
 
-var db = levelup('level-filesystem', {db:leveljs});
+var db = levelup(leveldown('level-filesystem'), {db:leveljs});
 module.exports = fs(db);
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..f4c981e
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,487 @@
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+          "integrity": "sha1-Elgg40vIQtLyqq+v5MKRbuMsFXw=",
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+}
diff --git a/package.json b/package.json
index afd2509..2ba6065 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "browserify-fs",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "description": "fs for the browser using level-filesystem and browserify",
   "repository": "mafintosh/browserify-fs",
   "keywords": [
@@ -12,6 +12,7 @@
   "dependencies": {
     "level-filesystem": "^1.0.1",
     "level-js": "^2.1.3",
-    "levelup": "^0.18.2"
+    "leveldown": "^5.3.0",
+    "levelup": "^4.2.0"
   }
 }