diff --git a/src/__tests__/isValidCommitMessage.test.ts b/src/__tests__/isValidCommitMessage.test.ts
index 343e425..1b6c436 100644
--- a/src/__tests__/isValidCommitMessage.test.ts
+++ b/src/__tests__/isValidCommitMessage.test.ts
@@ -2,6 +2,8 @@ import isValidCommitMessage from "../isValidCommitMesage";
 
 test("should be able to correctly validate the commit message", () => {
     expect(isValidCommitMessage("chore(nice-one): doing this right")).toBe(true);
+    expect(isValidCommitMessage("feat!: change all the things")).toBe(true);
+    expect(isValidCommitMessage("fix(user)!: a fix with some breaking changes")).toBe(true);
     expect(isValidCommitMessage("fix: menu must open on shortcut press")).toBe(true);
     expect(isValidCommitMessage("something: should not work")).toBe(false);
     expect(isValidCommitMessage("fixes something")).toBe(false);
diff --git a/src/isValidCommitMesage.ts b/src/isValidCommitMesage.ts
index fb7ba18..6ae140f 100644
--- a/src/isValidCommitMesage.ts
+++ b/src/isValidCommitMesage.ts
@@ -31,6 +31,7 @@ const isValidCommitMessage = (message, availableTypes = DEFAULT_COMMIT_TYPES): b
 
     possiblyValidCommitType = possiblyValidCommitType
         .replace(/\s/g, "") // Remove all whitespace
+        .replace(/\!/g, "") // Remove bang for notify breaking change
         .replace(/()/g, "") // Remove all whitespace
         .replace(/[^a-z]/g, ""); // Only leave [a-z] characters.