diff --git a/.commitlintrc b/.commitlintrc
new file mode 100644
index 0000000..7b57e79
--- /dev/null
+++ b/.commitlintrc
@@ -0,0 +1,16 @@
+import type { UserConfig } from '@commitlint/types';
+
+const Configuration: UserConfig = {
+  extends: ['@commitlint/config-conventional'],
+  rules: {
+    'subject-case': [
+      2,
+      'never',
+      [
+        'upper-case',
+        'pascal-case',
+        'start-case',
+      ]
+    ]
+  }
+};
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 0515850..f6c0cee 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -4,7 +4,7 @@
 # https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
 
 # Every time I update this file without changing the content, I increment this counter.
-# Counter: 14
+# Counter: 15
 
 version: 2
 updates: