diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4e0651b1ba..8d94666eed 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,7 +9,7 @@
 # Preamble ####################################################################
 #
 cmake_minimum_required(VERSION 3.18.0)
-project(HiPACE VERSION 23.02)
+project(HiPACE VERSION 23.03)
 
 # helper functions
 include(${HiPACE_SOURCE_DIR}/cmake/HiPACEFunctions.cmake)
diff --git a/cmake/dependencies/AMReX.cmake b/cmake/dependencies/AMReX.cmake
index 655bee75c2..9f0b36e405 100644
--- a/cmake/dependencies/AMReX.cmake
+++ b/cmake/dependencies/AMReX.cmake
@@ -154,7 +154,7 @@ set(HiPACE_amrex_src ""
 set(HiPACE_amrex_repo "https://github.com/AMReX-Codes/amrex.git"
     CACHE STRING
     "Repository URI to pull and build AMReX from if(HiPACE_amrex_internal)")
-set(HiPACE_amrex_branch "development"
+set(HiPACE_amrex_branch "23.03"
     CACHE STRING
     "Repository branch for HiPACE_amrex_repo if(HiPACE_amrex_internal)")
 
diff --git a/docs/source/conf.py b/docs/source/conf.py
index c1fde44a46..c91195ca8e 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -26,8 +26,8 @@
 project = 'HiPACE++'
 copyright = '2021, Severin Diederichs, Axel Huebl, Remi Lehe, Andrew Myers, Alexander Sinn, Maxence Thevenet, Weiqun Zhang'
 author = 'Severin Diederichs, Axel Huebl, Remi Lehe, Andrew Myers, Alexander Sinn, Maxence Thevenet, Weiqun Zhang'
-version = u'23.02'
-release = u'23.02'
+version = u'23.03'
+release = u'23.03'
 
 # -- General configuration ---------------------------------------------------
 
diff --git a/license.txt b/license.txt
index 856141a144..f036c98904 100644
--- a/license.txt
+++ b/license.txt
@@ -1,4 +1,4 @@
-HiPACE++ v23.02 Copyright (c) 2021-2022, The Regents of the University of California,
+HiPACE++ v23.03 Copyright (c) 2021-2023, The Regents of the University of California,
 through Lawrence Berkeley National Laboratory (subject to receipt of
 any required approvals from the U.S. Dept. of Energy) and Deutsches
 Elektronen-Synchrotron (DESY). All rights reserved.