diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index fcd5c83a..2691a6ce 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.3.0
+current_version = 0.4.0
 
 [bumpversion:file:docs/conf.py]
 search = release = '{current_version}'
diff --git a/CITATION.cff b/CITATION.cff
index 727828e6..70da66f2 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -81,4 +81,4 @@ keywords:
   - accelerators
 license: Apache-2.0
 date-released: 2022-03-08
-version: "0.3.0"
+version: "0.4.0"
diff --git a/CMakeLists.txt b/CMakeLists.txt
index c113e7bc..b7f476fa 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,7 +11,7 @@ endif()
 project(
   cudawrappers
   DESCRIPTION "C++ Wrappers for the CUDA Driver API"
-  VERSION 0.3.0
+  VERSION 0.4.0
   HOMEPAGE_URL https://github.com/nlesc-recruit/cudawrappers
   LANGUAGES CXX
 )
diff --git a/docs/conf.py b/docs/conf.py
index 9dfa8dc1..2939ace2 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -22,7 +22,7 @@
 author = 'cudawrappers developers'
 
 # The full version, including alpha/beta/rc tags
-release = '0.3.0'
+release = '0.4.0'
 
 
 # -- General configuration ---------------------------------------------------