diff --git a/pkgs/development/python-modules/cut-cross-entropy/default.nix b/pkgs/development/python-modules/cut-cross-entropy/default.nix
index dd9b90b42a64..6b7ecf81b715 100644
--- a/pkgs/development/python-modules/cut-cross-entropy/default.nix
+++ b/pkgs/development/python-modules/cut-cross-entropy/default.nix
@@ -24,7 +24,7 @@
 
 buildPythonPackage {
   pname = "cut-cross-entropy";
-  version = "25.5.1";
+  version = "25.7.2";
   pyproject = true;
 
   # The `ml-cross-entropy` Pypi comes from a third-party.
@@ -32,8 +32,8 @@ buildPythonPackage {
   src = fetchFromGitHub {
     owner = "apple";
     repo = "ml-cross-entropy";
-    rev = "b616b222976b235647790a16d0388338b9e18941"; # no tags
-    hash = "sha256-BVPon+T7chkpozX/IZU3KZMw1zRzlYVvF/22JWKjT2Y=";
+    rev = "b19a424ed30a05b8261cfa84d83b2601a9454c67"; # no tags
+    hash = "sha256-AwUqKiI7XjEOZ7ofjQCOsqvxHyTFD4RZ70odPyxxntc=";
   };
 
   build-system = [
@@ -65,6 +65,10 @@ buildPythonPackage {
 
   nativeCheckInputs = [ pytestCheckHook ];
 
+  disabledTests = [
+    "test_vocab_parallel" # Requires CUDA but does not use pytest.skip
+  ];
+
   pythonImportsCheck = [
     "cut_cross_entropy"
   ];
diff --git a/pkgs/development/python-modules/trl/default.nix b/pkgs/development/python-modules/trl/default.nix
index bc89ac18fd4b..e2b0b144b4c1 100644
--- a/pkgs/development/python-modules/trl/default.nix
+++ b/pkgs/development/python-modules/trl/default.nix
@@ -16,14 +16,14 @@
 
 buildPythonPackage rec {
   pname = "trl";
-  version = "0.20.0";
+  version = "0.21.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "huggingface";
     repo = "trl";
     tag = "v${version}";
-    hash = "sha256-z14refdNySnKcfFq54l+slsi4SLe5FG8UNoAKxfmAy0=";
+    hash = "sha256-9jbbbiGa/2NqHKe9rxDRyzfaWyy7tsoeHaMlpg0Oxk0=";
   };
 
   build-system = [
diff --git a/pkgs/development/python-modules/unsloth/default.nix b/pkgs/development/python-modules/unsloth/default.nix
index dc45bf8ded2f..73f94721b5e0 100644
--- a/pkgs/development/python-modules/unsloth/default.nix
+++ b/pkgs/development/python-modules/unsloth/default.nix
@@ -31,14 +31,14 @@
 
 buildPythonPackage rec {
   pname = "unsloth";
-  version = "2025.8.1";
+  version = "2025.8.9";
   pyproject = true;
 
   # Tags on the GitHub repo don't match
   src = fetchPypi {
     pname = "unsloth";
     inherit version;
-    hash = "sha256-hkE+f6apgilrE0lFTWRe8PEvRQ71YuoHpQgzd/R/FaI=";
+    hash = "sha256-XKYKEJCiOucuGfout8+FiTfO3KXvkucaduwWnZR5OwA=";
   };
 
   build-system = [
@@ -72,6 +72,7 @@ buildPythonPackage rec {
   # but it is not used.
   # Upstream issue: https://github.com/unslothai/unsloth-zoo/pull/68
   pythonRelaxDeps = [
+    "datasets"
     "protobuf"
     "transformers"
     "torch"