diff --git a/package.json b/package.json
index d12f3c8f0..b57a82b8a 100644
--- a/package.json
+++ b/package.json
@@ -105,6 +105,9 @@
     ],
     "transform": {
       "^.+\\.jsx?$": "<rootDir>/jest-preprocess.js"
+    },
+    "moduleNameMapper": {
+      "@theme-ui/css/dist/types": "@theme-ui/css/src/types"
     }
   },
   "husky": {
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index ba54e552b..cd8be941c 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -10,6 +10,7 @@ import { version as __EMOTION_VERSION__ } from '@emotion/core/package.json'
 
 import './react-jsx'
 
+export * from '@theme-ui/css/dist/types'
 export * from './types'
 
 const getCSS = (props) => {