diff --git a/pkg/convention/commit_test.go b/pkg/convention/commit_test.go
index c7e1a21..4d6713d 100644
--- a/pkg/convention/commit_test.go
+++ b/pkg/convention/commit_test.go
@@ -32,6 +32,18 @@ func TestNewCommit(t *testing.T) {
 				Message: "feat(lang): add polish language",
 			},
 		},
+		{
+			name: "Uppercase",
+			c: git.Commit{
+				Message: "REFACTOR!: drop support for Node 6",
+			},
+		},
+		{
+			name: "Mixedcase",
+			c: git.Commit{
+				Message: "Docs: correct spelling of CHANGELOG",
+			},
+		},
 	}
 
 	for _, tc := range tests {
diff --git a/pkg/convention/testdata/TestNewCommit/Mixedcase.golden b/pkg/convention/testdata/TestNewCommit/Mixedcase.golden
new file mode 100644
index 0000000..3f34a7d
--- /dev/null
+++ b/pkg/convention/testdata/TestNewCommit/Mixedcase.golden
@@ -0,0 +1,4 @@
+{
+  "RawHeader": "Docs: correct spelling of CHANGELOG",
+  "Type": "docs"
+}
\ No newline at end of file
diff --git a/pkg/convention/testdata/TestNewCommit/Uppercase.golden b/pkg/convention/testdata/TestNewCommit/Uppercase.golden
new file mode 100644
index 0000000..d302542
--- /dev/null
+++ b/pkg/convention/testdata/TestNewCommit/Uppercase.golden
@@ -0,0 +1,4 @@
+{
+  "RawHeader": "REFACTOR!: drop support for Node 6",
+  "Type": "refactor"
+}
\ No newline at end of file