diff --git a/pkgs/development/python-modules/accelerate/default.nix b/pkgs/development/python-modules/accelerate/default.nix
index 3ad999e18178..811eb965dd0c 100644
--- a/pkgs/development/python-modules/accelerate/default.nix
+++ b/pkgs/development/python-modules/accelerate/default.nix
@@ -162,7 +162,15 @@ buildPythonPackage rec {
   ++ lib.optionals (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isx86_64) [
     # RuntimeError: torch_shm_manager: execl failed: Permission denied
     "CheckpointTest"
-  ];
+  ]
+  ++
+    lib.optionals
+      (stdenv.hostPlatform.isLinux && stdenv.hostPlatform.isx86_64 && (pythonAtLeast "3.14"))
+      [
+        # https://github.com/huggingface/accelerate/issues/3899
+        "test_accelerate_test"
+        "test_cpu"
+      ];
 
   disabledTestPaths = lib.optionals (!(stdenv.hostPlatform.isLinux && stdenv.hostPlatform.isx86_64)) [
     # numerous instances of torch.multiprocessing.spawn.ProcessRaisedException:
diff --git a/pkgs/development/python-modules/llm-ollama/default.nix b/pkgs/development/python-modules/llm-ollama/default.nix
index 315627c2a88e..f9ea4c7feec2 100644
--- a/pkgs/development/python-modules/llm-ollama/default.nix
+++ b/pkgs/development/python-modules/llm-ollama/default.nix
@@ -22,14 +22,14 @@
 
 buildPythonPackage rec {
   pname = "llm-ollama";
-  version = "0.14.0";
+  version = "0.15.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "taketwo";
     repo = "llm-ollama";
     tag = version;
-    hash = "sha256-8ELjUpHaIC8BOcmyQNeyQDPxQ5vO4Pj6FFnHFhvP+r0=";
+    hash = "sha256-iSLLFC+kYcKq6VOYspkgUyTobU6qUs7FxoAXBmm8H44=";
   };
 
   build-system = [ setuptools ];
diff --git a/pkgs/development/python-modules/llm/default.nix b/pkgs/development/python-modules/llm/default.nix
index c93fe1269bb0..986aa799e015 100644
--- a/pkgs/development/python-modules/llm/default.nix
+++ b/pkgs/development/python-modules/llm/default.nix
@@ -6,6 +6,7 @@
   fetchFromGitHub,
   fetchpatch,
   pytestCheckHook,
+  pythonAtLeast,
   pythonOlder,
   replaceVars,
   setuptools,
@@ -249,6 +250,13 @@ let
       # TypeError: CliRunner.__init__() got an unexpected keyword argument 'mix_stderr
       # https://github.com/simonw/llm/issues/1293
       "test_embed_multi_files_encoding"
+    ]
+    ++ lib.optionals (pythonAtLeast "3.14") [
+      # Index out of range
+      # https://github.com/simonw/llm/issues/1335
+      "test_logs_fragments"
+      "test_expand_fragment_json"
+      "test_expand_fragment_markdown"
     ];
 
     pythonImportsCheck = [ "llm" ];
diff --git a/pkgs/development/python-modules/pydevd/default.nix b/pkgs/development/python-modules/pydevd/default.nix
index 47280989ba08..8e7bda0f9008 100644
--- a/pkgs/development/python-modules/pydevd/default.nix
+++ b/pkgs/development/python-modules/pydevd/default.nix
@@ -10,25 +10,25 @@
   pytest-xdist,
   pytestCheckHook,
   pythonAtLeast,
-  pythonOlder,
   trio,
   untangle,
 }:
 
 buildPythonPackage rec {
   pname = "pydevd";
-  version = "3.3.0";
+  version = "3.4.1";
   pyproject = true;
 
-  disabled = pythonOlder "3.8";
-
   src = fetchFromGitHub {
     owner = "fabioz";
     repo = "PyDev.Debugger";
-    rev = "pydev_debugger_${lib.replaceStrings [ "." ] [ "_" ] version}";
-    hash = "sha256-V5pM0xnMFnpR1oK0purHFCV3wu+4fOmd72kmy7pVeyk=";
+    tag = "pydev_debugger_${lib.replaceStrings [ "." ] [ "_" ] version}";
+    hash = "sha256-srcYeN4IsnX/B0AWLynr62UC5o+DcjnUrGjcTpvHTCM=";
   };
 
+  # https://github.com/fabioz/PyDev.Debugger/issues/316
+  disabled = pythonAtLeast "3.14";
+
   postPatch = ''
     sed -i '/addopts/d' pytest.ini
   '';
@@ -49,6 +49,10 @@ buildPythonPackage rec {
     untangle
   ];
 
+  enabledTestPaths = [
+    "tests/"
+  ];
+
   disabledTests = [
     # Require network connection
     "test_completion_sockets_and_messages"
diff --git a/pkgs/development/python-modules/sentence-transformers/default.nix b/pkgs/development/python-modules/sentence-transformers/default.nix
index 15d7b590b131..44f8dda23901 100644
--- a/pkgs/development/python-modules/sentence-transformers/default.nix
+++ b/pkgs/development/python-modules/sentence-transformers/default.nix
@@ -3,6 +3,7 @@
   stdenv,
   buildPythonPackage,
   fetchFromGitHub,
+  pythonAtLeast,
 
   # build-system
   setuptools,
@@ -128,6 +129,17 @@ buildPythonPackage rec {
     # NameError: name 'ParallelismConfig' is not defined
     "test_hf_argument_parser"
     "test_hf_argument_parser_incorrect_string_arguments"
+
+  ]
+  ++ lib.optionals (pythonAtLeast "3.14") [
+    # TypeError: Pickler._batch_setitems() takes 2 positional arguments but 3 were given
+    # https://github.com/huggingface/sentence-transformers/issues/3606
+    "test_group_by_label_batch_sampler_label_a"
+    "test_group_by_label_batch_sampler_label_b"
+    "test_group_by_label_batch_sampler_uneven_dataset"
+    "test_proportional_no_duplicates"
+    "test_round_robin_batch_sampler"
+    "test_round_robin_batch_sampler_vallue_error"
   ]
   ++ lib.optionals (!stdenv.hostPlatform.isAarch64 && stdenv.hostPlatform.isDarwin) [
     # These sparse tests also time out, on x86_64-darwin.