diff --git a/package.json b/package.json
index 1ee2c49..1e3eedc 100644
--- a/package.json
+++ b/package.json
@@ -24,14 +24,14 @@
     "pretest": "rm -rf build && mkdir build && rollup --banner \"$(preamble)\" -f umd -n d3 -o build/d3-quadtree.js -- index.js",
     "test": "tape 'test/**/*-test.js' && eslint index.js src",
     "prepublish": "npm run test && uglifyjs --preamble \"$(preamble)\" build/d3-quadtree.js -c -m -o build/d3-quadtree.min.js",
-    "postpublish": "VERSION=`node -e 'console.log(require(\"./package.json\").version)'`; git push && git push --tags && cd ../d3.github.com && git pull && cp ../d3-quadtree/build/d3-quadtree.js d3-quadtree.v1.js && cp ../d3-quadtree/build/d3-quadtree.min.js d3-quadtree.v1.min.js && git add d3-quadtree.v1.js d3-quadtree.v1.min.js && git commit -m \"d3-quadtree ${VERSION}\" && git push && cd - && zip -j build/d3-quadtree.zip -- LICENSE README.md build/d3-quadtree.js build/d3-quadtree.min.js"
+    "postpublish": "git push && git push --tags && cd ../d3.github.com && git pull && cp ../d3-quadtree/build/d3-quadtree.js d3-quadtree.v1.js && cp ../d3-quadtree/build/d3-quadtree.min.js d3-quadtree.v1.min.js && git add d3-quadtree.v1.js d3-quadtree.v1.min.js && git commit -m \"d3-quadtree ${npm_package_version}\" && git push && cd - && zip -j build/d3-quadtree.zip -- LICENSE README.md build/d3-quadtree.js build/d3-quadtree.min.js"
   },
   "devDependencies": {
     "d3-array": "1",
     "eslint": "3",
     "package-preamble": "0.0",
-    "rollup": "0.36",
+    "rollup": "0.41",
     "tape": "4",
-    "uglify-js": "2"
+    "uglify-js": "^2.8.11"
   }
 }