diff --git a/index.js b/index.js
index c254480..9e37ec3 100644
--- a/index.js
+++ b/index.js
@@ -6,7 +6,7 @@ module.exports = options => {
 	}, options);
 
 	const pattern = [
-		'[\\u001B\\u009B][[\\]()#;?]*(?:(?:(?:[a-zA-Z\\d]*(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]*)*)?\\u0007)',
+		'[\\u001B\\u009B][[\\]()#;?]*(?:(?:(?:(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]+)*|[a-zA-Z\\d]+(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]*)*)?\\u0007)',
 		'(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PR-TZcf-ntqry=><~]))'
 	].join('|');
 
diff --git a/package.json b/package.json
index a849fdf..66a43e1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "ansi-regex",
-	"version": "4.1.0",
+	"version": "4.1.1",
 	"description": "Regular expression for matching ANSI escape codes",
 	"license": "MIT",
 	"repository": "chalk/ansi-regex",