diff --git a/CHANGELOG.md b/CHANGELOG.md
index 136484ba..1851a3c7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,13 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 
 ### Changed
 
+### Fixed
+
+
+## [2.21.0] - 2025-01-13
+
+### Changed
+
 * Switched to C++14 as minimum requirement
 * Removed suport for Google Sparsehash
 * Removed support for projection using the Proj library (which only worked
@@ -23,6 +30,7 @@ This project adheres to [Semantic Versioning](https://semver.org/).
   a problem when merging diffs for different extracts.
 * Remove resource leak in temp file creation
 
+
 ## [2.20.0] - 2023-09-20
 
 ### Changed
@@ -1296,7 +1304,8 @@ long time. These will not be part of the next version of libosmium:
   Doxygen (up to version 1.8.8). This version contains a workaround to fix
   this.
 
-[unreleased]: https://github.com/osmcode/libosmium/compare/v2.20.0...HEAD
+[unreleased]: https://github.com/osmcode/libosmium/compare/v2.21.0...HEAD
+[2.21.0]: https://github.com/osmcode/libosmium/compare/v2.20.0...v2.21.0
 [2.20.0]: https://github.com/osmcode/libosmium/compare/v2.19.0...v2.20.0
 [2.19.0]: https://github.com/osmcode/libosmium/compare/v2.18.9...v2.19.0
 [2.18.0]: https://github.com/osmcode/libosmium/compare/v2.17.3...v2.18.0
diff --git a/CMakeLists.txt b/CMakeLists.txt
index bf7f8639..952dc5b5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -39,7 +39,7 @@ set(CMAKE_CONFIGURATION_TYPES "Debug;Release;RelWithDebInfo;MinSizeRel;Dev;Cover
 project(libosmium)
 
 set(LIBOSMIUM_VERSION_MAJOR 2)
-set(LIBOSMIUM_VERSION_MINOR 20)
+set(LIBOSMIUM_VERSION_MINOR 21)
 set(LIBOSMIUM_VERSION_PATCH 0)
 
 set(LIBOSMIUM_VERSION
diff --git a/include/osmium/version.hpp b/include/osmium/version.hpp
index fd032171..55d4ac10 100644
--- a/include/osmium/version.hpp
+++ b/include/osmium/version.hpp
@@ -37,11 +37,11 @@ DEALINGS IN THE SOFTWARE.
 #define LIBOSMIUM_VERSION_MAJOR 2
 
 // NOLINTNEXTLINE(modernize-macro-to-enum)
-#define LIBOSMIUM_VERSION_MINOR 20
+#define LIBOSMIUM_VERSION_MINOR 21
 
 // NOLINTNEXTLINE(modernize-macro-to-enum)
 #define LIBOSMIUM_VERSION_PATCH 0
 
-#define LIBOSMIUM_VERSION_STRING "2.20.0"
+#define LIBOSMIUM_VERSION_STRING "2.21.0"
 
 #endif // OSMIUM_VERSION_HPP