diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index f828f1ce..4c8846cb 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 3.1.0b0
+current_version = 3.1.0b1
 commit = False
 tag = False
 
diff --git a/docs/conf.py b/docs/conf.py
index 7a7229aa..f768504d 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -61,7 +61,7 @@
 # The short X.Y version.
 # version = '3.1'
 # The full version, including alpha/beta/rc tags.
-version = release = '3.1.0b0'
+version = release = '3.1.0b1'
 
 # 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 2b265e13..bd4594c6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "graphql-core"
-version = "3.1.0b0"
+version = "3.1.0b1"
 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 bed79cdc..bb20c533 100644
--- a/src/graphql/version.py
+++ b/src/graphql/version.py
@@ -4,9 +4,9 @@
 __all__ = ["version", "version_info", "version_js", "version_info_js"]
 
 
-version = "3.1.0b0"
+version = "3.1.0b1"
 
-version_js = "15.0.0c1"
+version_js = "15.0.0c2"
 
 
 _re_version = re.compile(r"(\d+)\.(\d+)\.(\d+)(\D*)(\d*)")