diff --git a/src/components/theme.ts b/src/components/theme.ts
index 7d0918ba010a309fe39b9e157b379ceedf8218e5..f862d042ac4e3ceffcdf6ed1feebf6d06f040980 100644
--- a/src/components/theme.ts
+++ b/src/components/theme.ts
@@ -67,5 +67,12 @@ export const theme = createTheme({
         color: 'inherit !important',
       },
     },
+    MuiAccordion: {
+      root: {
+        '&.MuiAccordion-root:before': {
+          backgroundColor: 'transparent',
+        },
+      },
+    },
   },
 })