diff --git a/README.md b/README.md
index a6c0aaed..e96b1452 100644
--- a/README.md
+++ b/README.md
@@ -380,6 +380,8 @@ _The following table is valid for new versions of audiomentations, like >=0.18.0
 
 ## Unreleased
 
+## v0.20.0 (2021-11-18)
+
 ### Added
 
 * Implement `OneOf` and `SomeOf` for applying one of or some of many transforms. Transforms are randomly
diff --git a/audiomentations/__init__.py b/audiomentations/__init__.py
index 7055ef01..a6c4e9cc 100644
--- a/audiomentations/__init__.py
+++ b/audiomentations/__init__.py
@@ -28,4 +28,4 @@
 )
 from .core.composition import Compose, SpecCompose, OneOf, SomeOf
 
-__version__ = "0.19.0"
+__version__ = "0.20.0"