diff --git a/CHANGELOG.md b/CHANGELOG.md
index 17a293972..1137f0576 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ _The following document documents changes to this library. Changes to the depend
 
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+## [1.15.1](https://github.com/sebbo2002/ical-generator/releases/tag/1.15.1) - 2020-10-03
+### Bugfix
+- Typings: OPT_PARTICIPANT should be OPT-PARTICIPANT (#192)
+
 ## [1.15.0](https://github.com/sebbo2002/ical-generator/releases/tag/1.15.0) - 2020-08-24
 ### Feature
 - Events: Add WKST support