diff --git a/src/services/code_block_theme.ts b/src/services/code_block_theme.ts
index f861a8b11..b0821580d 100644
--- a/src/services/code_block_theme.ts
+++ b/src/services/code_block_theme.ts
@@ -1,5 +1,5 @@
 import fs from "fs";
-import themeNames from "./code_block_theme_names.json" assert { type: "json" }
+import themeNames from "./code_block_theme_names.json" with { type: "json" }
 import { t } from "i18next";
 
 interface ColorTheme {