diff --git a/CHANGES-3.3 b/CHANGES-3.3
index a5d9565ba..ab83bd962 100644
--- a/CHANGES-3.3
+++ b/CHANGES-3.3
@@ -8,6 +8,18 @@ changelog -- this log starts with version 3.3.0. See CHANGES-3.2 for
 the history of the 3.2 series (2018-05 - 2022-08).
 
 
+# 3.3.1 (unreleased)
+
+This release contains contributions from (alphabetically by first name):
+ - Nobody yet!
+
+## Core ##
+ - No changes of note.
+
+## Modules ##
+ - No changes of note.
+
+
 # 3.3.0 (2023-12-12)
 
 This release contains contributions from (alphabetically by first name):
diff --git a/CMakeLists.txt b/CMakeLists.txt
index effc36d4f..8a26ae6c7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -47,8 +47,8 @@
 
 cmake_minimum_required(VERSION 3.16 FATAL_ERROR)
 
-set(CALAMARES_VERSION 3.3.0)
-set(CALAMARES_RELEASE_MODE ON) # Set to ON during a release
+set(CALAMARES_VERSION 3.3.1)
+set(CALAMARES_RELEASE_MODE OFF) # Set to ON during a release
 
 if(CMAKE_SCRIPT_MODE_FILE)
     include(${CMAKE_CURRENT_LIST_DIR}/CMakeModules/ExtendedVersion.cmake)