diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4345fac94..c9a7a1876 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,7 +21,7 @@ include(EthPolicy)
 eth_policy()
 
 # project name and version should be set after cmake_policy CMP0048
-set(PROJECT_VERSION "0.8.20")
+set(PROJECT_VERSION "0.8.21")
 # OSX target needed in order to support std::visit
 set(CMAKE_OSX_DEPLOYMENT_TARGET "10.14")
 project(solidity VERSION ${PROJECT_VERSION} LANGUAGES C CXX)
diff --git a/Changelog.md b/Changelog.md
index 87239a84d..164d998c2 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,3 +1,14 @@
+### 0.8.21 (unreleased)
+
+Language Features:
+
+
+Compiler Features:
+
+
+Bugfixes:
+
+
 ### 0.8.20 (2023-05-10)
 
 Compiler Features: