diff --git a/pkgs/development/python-modules/deltalake/default.nix b/pkgs/development/python-modules/deltalake/default.nix
index 93b592d465d4..58fa044f6b7d 100644
--- a/pkgs/development/python-modules/deltalake/default.nix
+++ b/pkgs/development/python-modules/deltalake/default.nix
@@ -9,6 +9,7 @@
   stdenv,
   libiconv,
   pkg-config,
+  polars,
   pytestCheckHook,
   pytest-benchmark,
   pytest-cov,
@@ -19,17 +20,17 @@
 
 buildPythonPackage rec {
   pname = "deltalake";
-  version = "0.20.1";
+  version = "0.25.5";
   format = "pyproject";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-serMb6Rirmw+QLpET3NT2djBoFBW/TGu1/5qYjiYpKE=";
+    hash = "sha256-Fz5Lg/z/EPJkdK4RcWHD8r3V9EwwwgRjwktri1IOdlY=";
   };
 
   cargoDeps = rustPlatform.fetchCargoVendor {
     inherit src;
-    hash = "sha256-WGnjVYws8ZZMv0MvBrohozxQuyOImktaLxuvAIiH+U0=";
+    hash = "sha256-6SGVKJu01MzZxJv29PZKea+Z2YwAnvzbdDlnA4R6Az0=";
   };
 
   env.OPENSSL_NO_VENDOR = 1;
@@ -61,6 +62,7 @@ buildPythonPackage rec {
   nativeCheckInputs = [
     pytestCheckHook
     pandas
+    polars
     pytest-benchmark
     pytest-cov
     pytest-mock