diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 4bd8fc1a..6fe9800a 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 3.3.0a0
+current_version = 3.3.0a1
 commit = False
 tag = False
 
diff --git a/README.md b/README.md
index 471c8303..e171f4a5 100644
--- a/README.md
+++ b/README.md
@@ -10,12 +10,15 @@ a query language for APIs created by Facebook.
 ![Lint Status](https://github.com/graphql-python/graphql-core/actions/workflows/lint.yml/badge.svg)
 [![Code Style](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/ambv/black)
 
-The current version 3.2.3 of GraphQL-core is up-to-date with GraphQL.js version 16.6.0.
-
 An extensive test suite with over 2300 unit tests and 100% coverage comprises a
 replication of the complete test suite of GraphQL.js, making sure this port is
 reliable and compatible with GraphQL.js.
 
+The current stable version 3.2.3 of GraphQL-core is up-to-date with GraphQL.js version 16.6.0.
+
+You can also try out the latest alpha version 3.3.0a1 of GraphQL-core that is up-to-date with GraphQL.js version 17.0.0a1.
+Please note that this new minor version of GraphQL-core does not support Python 3.7 anymore.
+
 Note that for various reasons, GraphQL-core does not use SemVer like GraphQL.js. Changes in the major version of GraphQL.js are reflected in the minor version of GraphQL-core instead. This means there can be breaking changes in the API when the minor version changes, and only patch releases are fully backward compatible. Therefore, we recommend something like `=~ 3.2.0` as version specifier when including GraphQL-core as a dependency.
 
 
diff --git a/docs/conf.py b/docs/conf.py
index a9007dfb..b32115c3 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -61,7 +61,7 @@
 # The short X.Y version.
 # version = '3.3'
 # The full version, including alpha/beta/rc tags.
-version = release = '3.3.0a0'
+version = release = '3.3.0a1'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/pyproject.toml b/pyproject.toml
index 7596cc76..661cbbc7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "graphql-core"
-version = "17.0.0a0"
+version = "3.3.0a1"
 description = """
 GraphQL-core is a Python port of GraphQL.js,\
  the JavaScript reference implementation for GraphQL."""
diff --git a/src/graphql/version.py b/src/graphql/version.py
index 88726e13..13de8d48 100644
--- a/src/graphql/version.py
+++ b/src/graphql/version.py
@@ -7,9 +7,9 @@
 __all__ = ["version", "version_info", "version_js", "version_info_js"]
 
 
-version = "3.3.0a0"
+version = "3.3.0a1"
 
-version_js = "17.0.0a0"
+version_js = "17.0.0a1"
 
 
 _re_version = re.compile(r"(\d+)\.(\d+)\.(\d+)(\D*)(\d*)")