From 2022b68be0861e7aef994b18a03d3cc6c42fc924 Mon Sep 17 00:00:00 2001
From: Patrick Stadler <patrick.stadler@gmail.com>
Date: Tue, 3 Dec 2019 12:52:18 +0100
Subject: [PATCH] [theme] Fix wrong ResponsiveFontSizesOptions type (#18661)

---
 packages/material-ui/src/styles/responsiveFontSizes.d.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/material-ui/src/styles/responsiveFontSizes.d.ts b/packages/material-ui/src/styles/responsiveFontSizes.d.ts
index b1b134bff228f9..79051a0508ddef 100644
--- a/packages/material-ui/src/styles/responsiveFontSizes.d.ts
+++ b/packages/material-ui/src/styles/responsiveFontSizes.d.ts
@@ -6,7 +6,7 @@ export interface ResponsiveFontSizesOptions {
   breakpoints?: Breakpoint[];
   disableAlign?: boolean;
   factor?: number;
-  variants?: ThemeStyle;
+  variants?: ThemeStyle[];
 }
 
 export default function responsiveFontSizes(