diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index f9e8ce93..e2aa0e98 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 3.3.0a5
+current_version = 3.3.0a6
 commit = False
 tag = False
 
diff --git a/README.md b/README.md
index 127c226b..7a0a1e7a 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ 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 and supports Python version 3.7 and newer.
 
-You can also try out the latest alpha version 3.3.0a5 of GraphQL-core
+You can also try out the latest alpha version 3.3.0a6 of GraphQL-core
 which is up-to-date with GraphQL.js version 17.0.0a2.
 Please note that this new minor version of GraphQL-core does not support
 Python 3.6 anymore.
diff --git a/docs/conf.py b/docs/conf.py
index 50c2639e..bd53efa0 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -60,7 +60,7 @@
 # The short X.Y version.
 # version = '3.3'
 # The full version, including alpha/beta/rc tags.
-version = release = "3.3.0a5"
+version = release = "3.3.0a6"
 
 # 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 e4cb603b..e149de23 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "graphql-core"
-version = "3.3.0a5"
+version = "3.3.0a6"
 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 7d09b483..29166e49 100644
--- a/src/graphql/version.py
+++ b/src/graphql/version.py
@@ -8,7 +8,7 @@
 __all__ = ["version", "version_info", "version_js", "version_info_js"]
 
 
-version = "3.3.0a5"
+version = "3.3.0a6"
 
 version_js = "17.0.0a2"