diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 3d514f8..d449e35 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,5 +1,8 @@
 For more detailed information about the changes see the history of the
 `repository <https://github.com/votca/xtp/commits/master>`__.
+
+Version 2021.1 (released 18.07.21)
+==================================
 
 Version 2021 (released 13.03.21)
 ================================
@@ -8,7 +11,7 @@
 -  add xtp_qmmm2qm to cmake install (#665)
 -  add auto-cancel workflow to GitHub Actions (#674)
 
-Version 2021-rc.1 (released 13.03.21)
+Version 2021-rc.1 (released 15.01.21)
 =====================================
 
 -  G0W0 rpa energies are fixed in BSE (#383)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6599c0c..591a9a4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.12)
 project(votca-xtp LANGUAGES CXX)
 
-set(PROJECT_VERSION "2021")
+set(PROJECT_VERSION "2021.1")
 string(REGEX REPLACE "[-.].*$" "" SOVERSION "${PROJECT_VERSION}")
 if (NOT ${SOVERSION} MATCHES "^[0-9]+$")
   message(FATAL_ERROR "Could not determine SOVERSION (${SOVERSION}) from ${PROJECT_VERSION}")
diff --git a/tutorials/CMakeLists.txt b/tutorials/CMakeLists.txt
index 5b60151..d95abb8 100644
--- a/tutorials/CMakeLists.txt
+++ b/tutorials/CMakeLists.txt
@@ -2,7 +2,7 @@
 
 project(xtp-tutorials LANGUAGES NONE)
 
-set(PROJECT_VERSION "2021")
+set(PROJECT_VERSION "2021.1")
 
 set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/CMakeModules)
 # not used, but stops GNUInstallDirs.cmake from warning