diff --git a/Makefile b/Makefile
deleted file mode 100644
index c8e1dd5..0000000
--- a/Makefile
+++ /dev/null
@@ -1,24 +0,0 @@
-BIN = ./node_modules/.bin
-SRC = $(wildcard src/* src/*/*)
-TEST = $(wildcard test/* test/*/*)
-
-build: index.js
-
-index.js: src/index.js $(SRC)
-	$(BIN)/rollup $< -c > $@
-
-test.js: test/index.js $(TEST)
-	$(BIN)/rollup $< -c > $@
-
-test: test-node test-browser
-
-test-node: test.js index.js
-	node $<
-
-test-browser: test.js index.js
-	$(BIN)/browserify $< --debug | $(BIN)/tape-run
-
-clean:
-	rm -rf index.js test.js
-
-.PHONY: build clean test test-node test-browser
diff --git a/package.json b/package.json
index f0eb709..66aede9 100644
--- a/package.json
+++ b/package.json
@@ -10,29 +10,36 @@
   "main": "index.js",
   "scripts": {
     "lint": "eslint src/ test/",
-    "build": "make clean && make",
-    "test": "make test",
+    "clean": "shx rm -rf index.js test.js",
+    "build": "npm-run-all clean build-lib",
+    "build-lib": "rollup src/index.js -c > index.js",
+    "build-test": "rollup test/index.js -c > test.js",
+    "test": "npm-run-all build-test test-node test-browser",
+    "test-node": "node test.js",
+    "test-browser": "browserify test.js --debug | tape-run",
     "prepublish": "npm run build",
     "autorelease": "autorelease pre && npm publish && autorelease post"
   },
   "dependencies": {
     "immutable": "^3.8.1",
-    "lodash": "^4.8.2"
+    "lodash.topath": "^4.5.2"
   },
   "devDependencies": {
     "autorelease": "^1.6.0",
     "autorelease-github": "^1.1.1",
     "autorelease-travis": "^1.2.1",
-    "babel-eslint": "^6.0.2",
+    "babel-eslint": "^7.2.1",
     "babel-plugin-transform-object-rest-spread": "^6.6.5",
-    "babel-preset-es2015-rollup": "^1.1.1",
-    "browserify": "^13.0.0",
+    "babel-preset-es2015-rollup": "^3.0.0",
+    "browserify": "^14.1.0",
     "eslint": "^3.0.0",
-    "rollup": "^0.34.0",
+    "npm-run-all": "^4.0.2",
+    "rollup": "^0.41.6",
     "rollup-plugin-babel": "^2.4.0",
     "rollup-plugin-json": "^2.0.0",
+    "shx": "^0.2.2",
     "tape": "^4.5.1",
-    "tape-run": "^2.1.3",
+    "tape-run": "^3.0.0",
     "uglify-js": "^2.6.2"
   },
   "keywords": [],
diff --git a/src/blueprint.js b/src/blueprint.js
index 8002f08..93dc888 100644
--- a/src/blueprint.js
+++ b/src/blueprint.js
@@ -1,5 +1,5 @@
 import { Record } from "immutable";
-import { toPath } from "lodash";
+import toPath from "lodash.topath";
 import Schema from "./schema";
 import Field from "./field";