Prevent webpack parsing issue (see zaach/jison#352)

Author: MoOx

package.json

@@ -34,7 +34,7 @@
     "eslint-config-i-am-meticulous": "^6.0.1",
     "eslint-plugin-babel": "^4.0.0",
     "eslint-plugin-import": "^2.2.0",
-    "jison": "^0.4.17"
+    "jison": "https://github.com/download13/jison#b7d6e0de7d2c2c1bde5451b8e99813843a473315"
   },
   "dependencies": {
     "css-unit-converter": "^1.1.1",