diff --git a/.prettierignore b/.prettierignore
index fe86897..008c30e 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -4,3 +4,4 @@ example
 .all-contributorsrc
 *.md
 *.yml
+*.yaml
diff --git a/branch-name-lint.config.js b/branch-name-lint.config.js
index 103931d..69ef412 100644
--- a/branch-name-lint.config.js
+++ b/branch-name-lint.config.js
@@ -1,10 +1,11 @@
-module.exports = {
-  rules: {
-    'branch-name': [
-      2,
-      {
-        format: /^(feature|publish|release|hotfix|develop|master)\/[a-z0-9._-]+$/,
-      }
-    ]
-  }
-};
+module.exports = {
+  rules: {
+    'branch-name': [
+      2,
+      {
+        format:
+          /^(feature|publish|release|hotfix|develop|master)\/[a-z0-9._-]+$/,
+      },
+    ],
+  },
+};