diff --git a/CHANGELOG.md b/CHANGELOG.md
index 87c0aae..78afd2a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,13 @@
 Release History
 ===============
 
+### 0.21.0
+Release on 23.09.2023
+
+New rules:
+
+* SIM911: zip(dict.keys(), dict.values()) → dict.items()
+
 ### 0.20.0
 Release on 30.03.2023
 
diff --git a/pyproject.toml b/pyproject.toml
index 69cfc8a..d0e9fb4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ requires = [
 
 [project]
 name = "flake8_simplify"
-version = "0.20.0"
+version = "0.21.0"
 description = "flake8 plugin which checks for code that can be simplified"
 keywords = [
   "flake8",