diff --git a/appveyor.yml b/appveyor.yml
index 63adf8f..6ff77db 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -31,7 +31,7 @@ environment:
     - PYTHON: "C:\\Python38-x64"
       PYTHON_VERSION: "3.8.x"
       PYTHON_ARCH: "64"
-version: "0.11.2.{build}"
+version: "0.12.0.{build}"
 init:
   - cmd: echo ===== INIT & %PYTHON%\python --version
 build_script:
diff --git a/remarshal.py b/remarshal.py
index 444905e..0828e07 100755
--- a/remarshal.py
+++ b/remarshal.py
@@ -22,7 +22,7 @@
 from collections import OrderedDict
 
 
-__version__ = '0.11.2'
+__version__ = '0.12.0'
 
 FORMATS = ['json', 'msgpack', 'toml', 'yaml', 'cbor']