diff --git a/pyproject.toml b/pyproject.toml
index 2385a0f..54d9bfc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "Flask-Mailman"
-version = "1.0.0"
+version = "1.1.1-dev"
 description = "Porting Django's email implementation to your Flask applications."
 authors = ["Waynerv <ampedee@gmail.com>"]
 license = "BSD-3-Clause"