diff --git a/bindings/python/Cargo.toml b/bindings/python/Cargo.toml
index b96a9419..07ea6e49 100644
--- a/bindings/python/Cargo.toml
+++ b/bindings/python/Cargo.toml
@@ -19,7 +19,7 @@ coverage = ["regorus/coverage"]
 [dependencies]
 anyhow = "1.0"
 ordered-float = "4.2.0"
-pyo3 = {version = "0.21.0", features = ["anyhow", "extension-module"] }
+pyo3 = {version = "0.22.0", features = ["anyhow", "extension-module"] }
 regorus = { path  = "../..", default-features = false, features = ["arc"] }
 serde_json = "1.0.112"