diff --git a/Cargo.toml b/Cargo.toml
index fb327de..bc4fd47 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,4 +9,4 @@ name = "rust_python_extension"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = { version = "0.20.0", features = ["extension-module"] }
+pyo3 = { version = "0.27.1", features = ["extension-module"] }