diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index fee1e3a..efaf1f5 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "5.0.0-alpha.21.2"
+  ".": "5.0.0-alpha.21.3"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c1f1bf4..12893c2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [5.0.0-alpha.21.3](https://github.com/fable-compiler/Fable.Python/compare/v5.0.0-alpha.21.2...v5.0.0-alpha.21.3) (2025-12-19)
+
+
+### Features
+
+* add Fable.Types module for runtime type detection ([#184](https://github.com/fable-compiler/Fable.Python/issues/184)) ([6e1e902](https://github.com/fable-compiler/Fable.Python/commit/6e1e902a0203d24206c3a7e6719383e464193fd5))
+
 ## [5.0.0-alpha.21.2](https://github.com/fable-compiler/Fable.Python/compare/v5.0.0-alpha.21.1...v5.0.0-alpha.21.2) (2025-12-18)