diff --git a/core/Cargo.toml b/core/Cargo.toml
index 639f0da..662b627 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -22,7 +22,7 @@ sha2 = "0.10"
 chrono = "0.4"
 
 [dependencies.pyo3]
-version = "0.23"
+version = "0.29"
 optional = true
 
 [features]
diff --git a/python/Cargo.toml b/python/Cargo.toml
index 255a0e6..0817d56 100644
--- a/python/Cargo.toml
+++ b/python/Cargo.toml
@@ -11,5 +11,5 @@ crate-type = ["cdylib"]
 
 [dependencies]
 streampdf-core = { path = "../core", features = ["python"] }
-pyo3 = { version = "0.23", features = ["extension-module"] }
+pyo3 = { version = "0.29", features = ["extension-module"] }
 chrono = "0.4"