diff --git a/cppe/CMakeLists.txt b/cppe/CMakeLists.txt
index 4ccfa4cf..6780f180 100644
--- a/cppe/CMakeLists.txt
+++ b/cppe/CMakeLists.txt
@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.0.0)
-project(cppe-core VERSION 0.3.0 LANGUAGES CXX)
+project(cppe-core VERSION 0.3.1 LANGUAGES CXX)
 
 include(GNUInstallDirs)
 include(CMakePackageConfigHelpers)
diff --git a/cppe/metadata.cc b/cppe/metadata.cc
index dcf2daa6..9cafcdd0 100644
--- a/cppe/metadata.cc
+++ b/cppe/metadata.cc
@@ -4,7 +4,7 @@
 
 namespace libcppe {
 namespace {
-static const std::string static_version_string = "0.3.0";
+static const std::string static_version_string = "0.3.1";
 
 static const std::vector<std::string> version_split = [](const std::string& in) {
   std::vector<std::string> parts;
diff --git a/setup.cfg b/setup.cfg
index d579bc22..df88c393 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.3.0
+current_version = 0.3.1
 commit = True
 tag = True
 
diff --git a/setup.py b/setup.py
index 60e4ab15..2af5b12c 100755
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@ def finalize_options(self):
         pass
 
 
-__version__ = "0.3.0"
+__version__ = "0.3.1"
 
 
 def strip_readme():