diff --git a/packages/core/parcel/src/transforms/postcss.js b/packages/core/parcel/src/transforms/postcss.js
index 9fefc708b6ea..0b892bee6912 100644
--- a/packages/core/parcel/src/transforms/postcss.js
+++ b/packages/core/parcel/src/transforms/postcss.js
@@ -18,7 +18,7 @@ module.exports = async function(asset) {
 
 async function getConfig(asset) {
   let config = await asset.getConfig(
-    ['.postcssrc', '.postcssrc.js', 'postcss.config.js'],
+    ['.postcssrc', '.postcssrc.json', '.postcssrc.js', 'postcss.config.js'],
     {packageKey: 'postcss'}
   );