diff --git a/meson.build b/meson.build
index 42f7f7f..54951a2 100644
--- a/meson.build
+++ b/meson.build
@@ -2,7 +2,7 @@
 project(
   'Rubber Band Library',
   'c', 'cpp',
-  version: '3.0.0',
+  version: '3.1.0-pre',
   license: 'GPL-2.0-or-later',
   default_options: [
     'cpp_std=c++11',
@@ -15,7 +15,7 @@ project(
   meson_version: '>= 0.53.0'
 )
 
-rubberband_dynamic_library_version = '2.2.0'
+rubberband_dynamic_library_version = '2.2.1'
 
 system = host_machine.system()
 architecture = host_machine.cpu_family()