diff --git a/Cargo.toml b/Cargo.toml
index c3d7992..2d228f0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,7 @@ keywords = ["physics", "simulation", "astronomy"]
 
 [dependencies]
 kete_core = { version = "*", path = "src/kete_core", features=["pyo3", "polars"]}
-pyo3 = { version =  "^0.24.1", features = ["extension-module"] }
+pyo3 = { version =  "^0.28.3", features = ["extension-module"] }
 serde = { version = "^1.0.203", features = ["derive"] }
 nalgebra = {version = "^0.33.0"}
 itertools = "^0.14.0"
diff --git a/src/kete_core/Cargo.toml b/src/kete_core/Cargo.toml
index 0bcd94f..858674d 100644
--- a/src/kete_core/Cargo.toml
+++ b/src/kete_core/Cargo.toml
@@ -21,7 +21,7 @@ lazy_static = "^1.5.0"
 nalgebra = {version = "^0.33.0"}
 polars = {version = "0.45.1", optional=true, features=["parquet", "polars-io"]}
 pathfinding = "^4.10.0"
-pyo3 = { version =  "^0.24.1", optional=true}
+pyo3 = { version =  "^0.28.3", optional=true}
 rayon = "^1.10.0"
 serde = { version = "^1.0.203", features = ["derive"] }
 sgp4 = "^2.2.0"