diff --git a/pyproject.toml b/pyproject.toml
index b8c72e8..ad62874 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ target_version = [
 github_url = "https://github.com/minrk/wurlitzer"
 
 [tool.tbump.version]
-current = "3.1.0"
+current = "3.2.0.dev"
 
 # Example of a semver regexp.
 # Make sure this matches current_version before
diff --git a/wurlitzer.py b/wurlitzer.py
index 5ac529c..7e7db95 100644
--- a/wurlitzer.py
+++ b/wurlitzer.py
@@ -5,7 +5,7 @@
 
 from __future__ import print_function
 
-__version__ = '3.1.0'
+__version__ = '3.2.0.dev'
 
 __all__ = [
     'pipes',