diff --git a/src/symbol-icon-theme.json b/src/symbol-icon-theme.json
index 7d2aa3b..0ab680a 100644
--- a/src/symbol-icon-theme.json
+++ b/src/symbol-icon-theme.json
@@ -594,8 +594,10 @@
     ".prettierrc": "prettier",
     "prettier.config.js": "prettier",
     "prettier.config.cjs": "prettier",
+    "prettier.config.mjs": "prettier",
     ".prettierrc.js": "prettier",
     ".prettierrc.cjs": "prettier",
+    ".prettierrc.mjs": "prettier",
     ".prettierrc.json": "prettier",
     ".prettierrc.json5": "prettier",
     ".prettierrc.yaml": "prettier",