diff --git a/pkgs/by-name/ta/tabbyapi/package.nix b/pkgs/by-name/ta/tabbyapi/package.nix
index 50b0a10ed69d..98cfd666689b 100644
--- a/pkgs/by-name/ta/tabbyapi/package.nix
+++ b/pkgs/by-name/ta/tabbyapi/package.nix
@@ -7,14 +7,14 @@
 }:
 python3Packages.buildPythonApplication {
   pname = "tabbyapi";
-  version = "0-unstable-2026-01-20";
+  version = "0-unstable-2026-05-29";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "theroyallab";
     repo = "tabbyAPI";
-    rev = "54e3ea1fb30c48217f82dcb4ab1359f4784da4c8";
-    hash = "sha256-cwxpW4s8LKxS+2A2Grfhx8XaxbfT8U1LG59yhbu1lD8=";
+    rev = "95c1101bd2a18abec818a1bc2eb013438d1b55d0";
+    hash = "sha256-VOHoPD8tb1ewOQL4LOhAYxsMBrahLAIEppYA8BXHOfc=";
   };
 
   build-system = with python3Packages; [
@@ -53,6 +53,7 @@ python3Packages.buildPythonApplication {
       psutil
       httptools
       pillow
+      requests
       numpy
       setuptools
 
diff --git a/pkgs/development/python-modules/exllamav2/default.nix b/pkgs/development/python-modules/exllamav2/default.nix
index 9c14dfb1cbaf..2014fb621c26 100644
--- a/pkgs/development/python-modules/exllamav2/default.nix
+++ b/pkgs/development/python-modules/exllamav2/default.nix
@@ -25,7 +25,7 @@
   torch,
   websockets,
 }:
-buildPythonPackage (finalAttrs: {
+buildPythonPackage.override { inherit (torch) stdenv; } (finalAttrs: {
   pname = "exllamav2";
   version = "0.3.2";
   pyproject = true;
diff --git a/pkgs/development/python-modules/exllamav3/default.nix b/pkgs/development/python-modules/exllamav3/default.nix
index d7f2b13eb33f..c734222c2421 100644
--- a/pkgs/development/python-modules/exllamav3/default.nix
+++ b/pkgs/development/python-modules/exllamav3/default.nix
@@ -21,20 +21,21 @@
   tokenizers,
   torch,
   typing-extensions,
+  xformers,
 }:
 let
   newerThanTuring = lib.filter (version: lib.versionOlder "7.9" version) torch.cudaCapabilities;
 in
-buildPythonPackage (finalAttrs: {
+buildPythonPackage.override { inherit (torch) stdenv; } (finalAttrs: {
   pname = "exllamav3";
-  version = "0.0.25";
+  version = "0.0.38";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "turboderp-org";
     repo = "exllamav3";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-CltM0bQ3mvQwUYulsVByS7mcIIy6O/P1+nq4h5UAO6E=";
+    hash = "sha256-WlHIbnQX1Jd7y5yQzlqXVgBLQ92rnDSWy4z9bEm3WLA=";
   };
 
   pythonRelaxDeps = [
@@ -71,6 +72,7 @@ buildPythonPackage (finalAttrs: {
     tokenizers
     torch
     typing-extensions
+    xformers
   ];
 
   env = lib.optionalAttrs torch.cudaSupport {