diff --git a/CHANGELOG.md b/CHANGELOG.md
index d33e9d7..e54eb09 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## v5.3.1 (2025-02-03)
+
+### Fix
+
+- add py.typed marker file (pep-561) (#637)
+
 ## v5.3.0 (2025-02-02)
 
 ### Feat