diff --git a/package.json b/package.json
index 209860e..f21423b 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,8 @@
     "react-hcaptcha": "^0.1.1",
     "react-redux": "^7.2.4",
     "redux": "^4.1.1",
-    "redux-thunk": "^2.3.0"
+    "redux-thunk": "^2.3.0",
+    "theme-ui": "^0.12.0"
   },
   "devDependencies": {
     "eslint": "7.32.0",