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+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## [1.8.1](https://github.com/iamkun/dayjs/compare/v1.8.0...v1.8.1) (2019-02-02)
+
+
+### Performance Improvements
+
+* **format:** reuse matches instead of created when replacing ([#441](https://github.com/iamkun/dayjs/issues/441)) ([10b79d8](https://github.com/iamkun/dayjs/commit/10b79d8))
+
 # [1.8.0](https://github.com/iamkun/dayjs/compare/v1.7.8...v1.8.0) (2019-01-14)