diff --git a/internal/convention/commit_test.go b/internal/convention/commit_test.go
index 3811eab..74a0508 100644
--- a/internal/convention/commit_test.go
+++ b/internal/convention/commit_test.go
@@ -34,6 +34,12 @@ func TestNewCommit(t *testing.T) {
 				Message: "feat(lang): add polish language",
 			},
 		},
+		{
+			name: "Commit message with scope",
+			c: git.Commit{
+				Message: "feat(bump00): allow bump minor",
+			},
+		},
 		{
 			name: "Uppercase",
 			c: git.Commit{
diff --git a/internal/convention/option.go b/internal/convention/option.go
index b970495..801214c 100644
--- a/internal/convention/option.go
+++ b/internal/convention/option.go
@@ -20,7 +20,8 @@ const (
 var (
 	ErrEmptyCommit = errors.New("empty commit")
 
-	headerRegex = regexp.MustCompile(`(?P<type>[a-zA-Z]+)(?P<scope>\([a-zA-Z]+\))?(?P<attention>!)?:\s(?P<description>.+)`)
+	// Self build
+	headerRegex = regexp.MustCompile(`(?P<type>[a-zA-Z0-9]+)(?P<scope>\([a-zA-Z0-9]+\))?(?P<attention>!)?:\s(?P<description>.+)`)
 )
 
 type OptionFn func(*Commit) error
diff --git a/internal/convention/testdata/TestNewCommit/Commit_message_with_scope#01.golden b/internal/convention/testdata/TestNewCommit/Commit_message_with_scope#01.golden
new file mode 100644
index 0000000..562da90
--- /dev/null
+++ b/internal/convention/testdata/TestNewCommit/Commit_message_with_scope#01.golden
@@ -0,0 +1,5 @@
+{
+  "RawHeader": "feat(bump00): allow bump minor (0001-01-01)",
+  "Type": "feat",
+  "Scope": "bump00"
+}
\ No newline at end of file