diff --git a/dist/index.js b/dist/index.js
index a09a144..4f5dd14 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -8,7 +8,7 @@ const app = (0, express_1.default)();
 require('dotenv').config();
 app.get('/share/:key', (req, res) => tslib_1.__awaiter(void 0, void 0, void 0, function* () {
     var _a;
-    if (req.params.key.match(/[^A-Za-z0-9-]/)) {
+    if (req.params.key.match(/[^\w-]/)) {
         // Invalid characters in the incoming URL
         res.status(404).send();
     }
@@ -34,4 +34,4 @@ app.get('/share/:key', (req, res) => tslib_1.__awaiter(void 0, void 0, void 0, f
 app.listen(3000, () => {
     console.log((0, dayjs_1.default)().format() + ' Server started');
 });
-//# sourceMappingURL=data:application/json;base64,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
\ No newline at end of file
+//# sourceMappingURL=data:application/json;base64,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
\ No newline at end of file
diff --git a/src/index.ts b/src/index.ts
index 72e5f55..4a92802 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -7,7 +7,7 @@ const app = express()
 require('dotenv').config()
 
 app.get('/share/:key', async (req, res) => {
-  if (req.params.key.match(/[^A-Za-z0-9-_]/)) {
+  if (req.params.key.match(/[^\w-]/)) {
     // Invalid characters in the incoming URL
     res.status(404).send()
   } else {