diff --git a/CMakeLists.txt b/CMakeLists.txt
index f67cae38958f0dd2fa81c430c3fbb0370ccbf698..1dd67bd32331b81d36005f0d083968f6a7b7167a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -13,7 +13,7 @@ include(CTest)
 include(FetchContent)
 
 set (opendht_VERSION_MAJOR 3)
-set (opendht_VERSION_MINOR 3.0)
+set (opendht_VERSION_MINOR 4.0)
 set (opendht_VERSION ${opendht_VERSION_MAJOR}.${opendht_VERSION_MINOR})
 set (PACKAGE_VERSION ${opendht_VERSION})
 set (VERSION "${opendht_VERSION}")
diff --git a/configure.ac b/configure.ac
index bdada013b3ea50e0c288f87d6c77c70375d48e51..b54d5b4910c7bcf077512050551594bdab8479bb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,6 @@
 dnl define macros
 m4_define([opendht_major_version], 3)
-m4_define([opendht_minor_version], 3)
+m4_define([opendht_minor_version], 4)
 m4_define([opendht_patch_version], 0)
 m4_define([opendht_version],
 		  [opendht_major_version.opendht_minor_version.opendht_patch_version])
diff --git a/meson.build b/meson.build
index 2f77f9481a2f560d99211f80fcb6cd653feac0e2..142b06e67107ff624569de7843d44d4a4390549b 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('opendht', 'c', 'cpp', 'cython',
-    version: '3.3.0',
+    version: '3.4.0',
     default_options: [
         'cpp_std=c++17',
         'warning_level=3'