diff --git a/packages/happy-dom/src/query-selector/SelectorParser.ts b/packages/happy-dom/src/query-selector/SelectorParser.ts
index 5feb79d0..cdc52a5a 100644
--- a/packages/happy-dom/src/query-selector/SelectorParser.ts
+++ b/packages/happy-dom/src/query-selector/SelectorParser.ts
@@ -25,7 +25,7 @@ import ISelectorPseudo from './ISelectorPseudo.js';
  * Group 17: Combinator.
  */
 const SELECTOR_REGEXP =
-	/(\*)|([a-zA-Z0-9-]+)|#((?:[a-zA-Z0-9-_]|\\.)+)|\.((?:[a-zA-Z0-9-_]|\\.)+)|\[([a-zA-Z0-9-_\\:]+)\]|\[([a-zA-Z0-9-_\\:]+)\s*([~|^$*]{0,1})\s*=\s*["']{1}([^"']*)["']{1}\s*(s|i){0,1}\]|\[([a-zA-Z0-9-_]+)\s*([~|^$*]{0,1})\s*=\s*([^\]]*)\]|:([a-zA-Z-]+)\s*\(([^)]+)\){0,1}|:([a-zA-Z-]+)|::([a-zA-Z-]+)|([\s,+>~]*)/gm;
+	/(\*)|([a-zA-Z0-9-]+)|#((?:[a-zA-Z0-9-_]|\\.)+)|\.((?:[a-zA-Z0-9-_]|\\.)+)|\[([a-zA-Z0-9-_\\:]+)\]|\[([a-zA-Z0-9-_\\:]+)\s*([~|^$*]{0,1})\s*=\s*["']{1}([^"']*)["']{1}\s*(s|i){0,1}\]|\[([a-zA-Z0-9-_]+)\s*([~|^$*]{0,1})\s*=\s*([^\]]*)\]|:([a-zA-Z-]+)\s*\(((?:[^()]|\[[^\]]*\]|\([^()]*\))*)\){0,1}|:([a-zA-Z-]+)|::([a-zA-Z-]+)|([\s,+>~]*)/gm;
 
 /**
  * Escaped Character RegExp.
diff --git a/packages/happy-dom/test/query-selector/QuerySelector.test.ts b/packages/happy-dom/test/query-selector/QuerySelector.test.ts
index fb6b52ed..20af610a 100644
--- a/packages/happy-dom/test/query-selector/QuerySelector.test.ts
+++ b/packages/happy-dom/test/query-selector/QuerySelector.test.ts
@@ -1265,6 +1265,21 @@ describe('QuerySelector', () => {
 			expect(subsequentSiblings3[0].textContent).toBe('a2');
 			expect(subsequentSiblings3[1].textContent).toBe('a3');
 		});
+
+		it('Returns all elements for attribute selector with round brackets within', () => {
+			const div = document.createElement('div');
+
+			div.innerHTML = `
+				<span>loremipsum</span>
+				<a href="/123">normal link</a>                        
+				<a href="javascript:void(0)">void</a>
+			`;
+
+			const voidLinks = div.querySelectorAll('a[href="javascript:void(0)"]');
+			expect(voidLinks.length).toBe(1);
+			const normalLinks = div.querySelectorAll('a[href]:not([href="javascript:void(0)"])');
+			expect(normalLinks.length).toBe(1);
+		});
 	});
 
 	describe('querySelector()', () => {