diff --git a/README.md b/README.md
index 04692bab..06d5b8aa 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ GraphQL for Python
 
 This library is a port of [graphql-js](https://github.com/graphql/graphql-js) to Python.
 
-We are currently targeting feature parity with `v0.4.18` of the reference implementation, and are currently on `v0.4.17`.
+We are currently targeting feature parity with `v0.4.18` of the reference implementation, and are currently on `v0.5.0`.
 
 Please see [issues](https://github.com/graphql-python/graphql-core/issues) for the progress.
 
diff --git a/setup.py b/setup.py
index af1bd1ea..7312c562 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 
 setup(
     name='graphql-core',
-    version='0.4.17',
+    version='0.4.18',
     description='GraphQL implementation for Python',
     url='https://github.com/graphql-python/graphql-core',
     download_url='https://github.com/graphql-python/graphql-core/releases',