diff --git a/lib/is-email.js b/lib/is-email.js
index c4edda2..f041f5c 100644
--- a/lib/is-email.js
+++ b/lib/is-email.js
@@ -1,4 +1,4 @@
-const matcher = /.+\@.+\..+/;
+var matcher = /^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/;
 
 export default function isEmail(string) {
   return matcher.test(string);