diff --git a/package.json b/package.json
index 2def9ee..49ad5cb 100644
--- a/package.json
+++ b/package.json
@@ -5,12 +5,15 @@
   "dependencies": {
     "cannon": "^0.6.2",
     "gulp": "^3.9.1",
+    "gulp-c-preprocessor": "0.0.4",
     "gulp-concat": "^2.6.0",
     "gulp-minify": "0.0.14",
     "gulp-sort": "^2.0.0",
+    "gulp-util": "^3.0.7",
     "lodash": "^4.17.2",
     "q": "^1.4.1",
-    "three": "^0.81.2"
+    "three": "^0.81.2",
+    "through2": "^2.0.1"
   },
   "repository": "https://github.com/ToywheelDev/game-lib.git",
   "license": "UNLICENSED",