diff --git a/Changelog b/Changelog
index 3f9ff65..10b0849 100644
--- a/Changelog
+++ b/Changelog
@@ -9,7 +9,7 @@ Changes marked with '*' indicates a changes that breaks backward compatibility
 [ ] Add namespaces to attributes
 [ ] Make sure List.map is tail recursive for list types
 
-5.1.3
+5.1.3 (2020-09-23)
 [x] Remove dependency on stdio
 [x] Fix warning when compiling with 4.11