diff --git a/package.json b/package.json
index dff39a7..5d6954e 100644
--- a/package.json
+++ b/package.json
@@ -18,9 +18,11 @@
   "author": "Julian Niessner",
   "license": "ISC",
   "devDependencies": {
+    "@types/gl-matrix": "^2.4.5",
     "browserify": "^16.5.0",
     "typescript": "^3.7.5"
   },
   "dependencies": {
+    "gl-matrix": "^3.1.0"
   }
 }