diff --git a/CHANGES.txt b/CHANGES.txt
index f4d7c3fe..c6ddc29c 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,7 +1,13 @@
+1.5.0a1 (2023-08-29)
+^^^^^^^^^^^^^^^^^^
+
+* SQLAlchemy 2.0 compatibility `#901 <https://github.com/aio-libs/aiopg/pull/901>`_
+
+
 1.4.0 (2022-10-26)
 ^^^^^^^^^^^^^^^^^^
 
-* Add python 3.11 and drop python 3.6 support` #892 <https://github.com/aio-libs/aiopg/pull/892>`_
+* Add python 3.11 and drop python 3.6 support `#892 <https://github.com/aio-libs/aiopg/pull/892>`_
 
 
 1.3.5 (2022-09-25)
diff --git a/aiopg/__init__.py b/aiopg/__init__.py
index 42a278e3..bdd30379 100644
--- a/aiopg/__init__.py
+++ b/aiopg/__init__.py
@@ -41,7 +41,7 @@
     "Transaction",
 )
 
-__version__ = "1.4.0"
+__version__ = "1.5.0a1"
 
 version = f"{__version__}, Python {sys.version}"