diff --git a/components/modals/index.js b/components/modals/index.js
index 4392ba8..6f44268 100644
--- a/components/modals/index.js
+++ b/components/modals/index.js
@@ -9,7 +9,6 @@ const {
 const r = require('r-dom');
 
 const React = require('react');
-const PropTypes = require('prop-types');
 
 const Modal = require('react-modal');
 
diff --git a/package.json b/package.json
index aa39e4c..4037c08 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,6 @@
     "ini": "^1.3.5",
     "mathjs": "^6.0.4",
     "pixi.js": "^5.1.1",
-    "prop-types": "^15.7.2",
     "r-dom": "^2.4.0",
     "ramda": "^0.26.1",
     "react": "^16.9.0",