diff --git a/CHANGELOG.md b/CHANGELOG.md
index c29c874..59cd047 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## [Unreleased] - TBD
 
+## [0.9.1] - 2022-09-02
+
+- Use `poetry-core` for building the package.
+
 ## [0.9.0] - 2022-04-29
 
 ### Added
@@ -166,7 +170,8 @@ Invalid queries:
 
 - Initial public release
 
-[Unreleased]: https://github.com/stranger6667/hypothesis-graphql/compare/v0.9.0...HEAD
+[Unreleased]: https://github.com/stranger6667/hypothesis-graphql/compare/v0.9.1...HEAD
+[0.9.1]: https://github.com/stranger6667/hypothesis-graphql/compare/v0.9.0...v0.9.1
 [0.9.0]: https://github.com/stranger6667/hypothesis-graphql/compare/v0.8.2...v0.9.0
 [0.8.2]: https://github.com/stranger6667/hypothesis-graphql/compare/v0.8.1...v0.8.2
 [0.8.1]: https://github.com/stranger6667/hypothesis-graphql/compare/v0.8.0...v0.8.1
diff --git a/pyproject.toml b/pyproject.toml
index 5e3ddc4..838d7a0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "hypothesis-graphql"
-version = "0.9.0"
+version = "0.9.1"
 description = "Hypothesis strategies for GraphQL queries"
 keywords = ["hypothesis", "graphql", "testing"]
 classifiers = [