diff --git a/pkgs/development/python-modules/bitsandbytes/default.nix b/pkgs/development/python-modules/bitsandbytes/default.nix
index 66769216709a..4d33e8f943c0 100644
--- a/pkgs/development/python-modules/bitsandbytes/default.nix
+++ b/pkgs/development/python-modules/bitsandbytes/default.nix
@@ -27,7 +27,7 @@
 
 let
   pname = "bitsandbytes";
-  version = "0.48.2";
+  version = "0.49.1";
 
   brokenConditions = lib.attrsets.filterAttrs (_: cond: cond) {
     "CUDA and ROCm are mutually exclusive" = cudaSupport && rocmSupport;
@@ -81,7 +81,7 @@ buildPythonPackage {
     owner = "bitsandbytes-foundation";
     repo = "bitsandbytes";
     tag = version;
-    hash = "sha256-gtNOMxLeYTCZK5MVdpjOFOw6rxvqS+XJmY1Meiuz0Rw=";
+    hash = "sha256-nNhxDJITXNIZMXuZdzpF5dl1K1kFEVQ0gbTqZnOf/sI=";
   };
 
   patches = [