diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index c3f1463..41ea87d 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.2.0"
+  ".": "1.2.1"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b8c7195..40d6e89 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,22 @@
 # Changelog
 
+## [1.2.1](https://github.com/monetr/validation/compare/v1.2.0...v1.2.1) (2026-06-14)
+
+
+### Bug Fixes
+
+* Make the nil rule distinct in its error message ([b6fec38](https://github.com/monetr/validation/commit/b6fec381e7d8136b546e6fcd4dbf85a457789925))
+
+
+### Miscellaneous
+
+* Improvements ([dd0184c](https://github.com/monetr/validation/commit/dd0184c0808922adbabcde4a0d46771cda92eea9))
+
+
+### Refactor
+
+* Migrate type assertions to the `is` package ([c2db665](https://github.com/monetr/validation/commit/c2db665952a358407cff44fc705fc5c661be2208))
+
 ## [1.2.0](https://github.com/monetr/validation/compare/v1.1.0...v1.2.0) (2026-06-13)