diff --git a/fastapi_users/__init__.py b/fastapi_users/__init__.py
index 1eabeb3c..a75d46c5 100644
--- a/fastapi_users/__init__.py
+++ b/fastapi_users/__init__.py
@@ -1,6 +1,6 @@
 """Ready-to-use and customizable users management for FastAPI."""
 
-__version__ = "3.1.2"
+__version__ = "4.0.0"
 
 from fastapi_users import models  # noqa: F401
 from fastapi_users.fastapi_users import FastAPIUsers  # noqa: F401
diff --git a/setup.cfg b/setup.cfg
index 15534e4e..38c3f97d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 3.1.2
+current_version = 4.0.0
 commit = True
 tag = True