diff --git a/package.json b/package.json
index b17eb2c7..29fd4b8e 100644
--- a/package.json
+++ b/package.json
@@ -9,9 +9,9 @@
     "preview": "vite preview",
     "check:es": "eslint src/*/** --quiet",
     "check:ts": "svelte-check --tsconfig ./tsconfig.json --threshold error",
-    "check:fmt": "prettier --check '{public,src}/**/*.{css,html,js,svelte}'",
+    "check:fmt": "prettier --check $(git diff --name-only --diff-filter d | grep -E 'js|svelte$' | xargs)",
     "check": "run-p check:*",
-    "format": "prettier --write '{public,src}/**/*.{css,html,js,svelte}'",
+    "format": "prettier --write $(git diff --name-only --diff-filter d | grep -E 'js|svelte$' | xargs)",
     "watch": "find src -type f | entr -r"
   },
   "devDependencies": {