diff --git a/Cargo.toml b/Cargo.toml
index be82969..4519bf6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,7 @@ readme = "README.md"
 
 [dependencies]
 bitcoin = { version = "0.32", features = ["serde", "base64"] }
-pyo3 = { version = "0.21.2", features = ["auto-initialize"] }
+pyo3 = { version = "0.24.1", features = ["auto-initialize"] }
 serde = { version = "^1.0", features = ["derive"] }
 serde_json = { version = "^1.0" }