diff --git a/polars_distance/Cargo.toml b/polars_distance/Cargo.toml
index 54584f1..98e225d 100644
--- a/polars_distance/Cargo.toml
+++ b/polars_distance/Cargo.toml
@@ -8,11 +8,11 @@ name = "polars_distance"
 crate-type = ["cdylib"]
 
 [dependencies]
-polars = { version = "0.38.3" , features = ["dtype-struct", "dtype-array", 'dtype-categorical', 'dtype-u16', 'dtype-u8', 'dtype-i8','dtype-i16']}
-polars-core = {version = "0.38.3"}
-polars-arrow = {version = "0.38.3"}
-pyo3 = { version = "0.20.3", features = ["extension-module", "abi3-py38"] }
-pyo3-polars = { version = "0.12", features = ["derive"] }
+polars = { version = "0.44.2" , features = ["dtype-struct", "dtype-array", 'dtype-categorical', 'dtype-u16', 'dtype-u8', 'dtype-i8','dtype-i16']}
+polars-core = {version = "0.44.2"}
+polars-arrow = {version = "0.44.2"}
+pyo3 = { version = "0.21", features = ["extension-module", "abi3-py38"] }
+pyo3-polars = { version = "0.18", features = ["derive", 'dtype-array','dtype-categorical','dtype-struct'] }
 serde = { version = "1", features = ["derive"] }
 distances = { version = "1.6.3"}
 rapidfuzz = { version = "0.5.0"}
diff --git a/polars_distance/rust-toolchain b/polars_distance/rust-toolchain
new file mode 100644
index 0000000..07ade69
--- /dev/null
+++ b/polars_distance/rust-toolchain
@@ -0,0 +1 @@
+nightly
\ No newline at end of file
diff --git a/polars_distance/src/other_dist.rs b/polars_distance/src/other_dist.rs
index fe9a511..e8c1184 100644
--- a/polars_distance/src/other_dist.rs
+++ b/polars_distance/src/other_dist.rs
@@ -50,5 +50,5 @@ where
         })
         .collect();
 
-    Ok(out.with_name("haversine"))
+    Ok(out.with_name("haversine".into()))
 }