diff --git a/pkgs/development/libraries/hwloc/default.nix b/pkgs/development/libraries/hwloc/default.nix
index 426f87047cd..028504bb699 100644
--- a/pkgs/development/libraries/hwloc/default.nix
+++ b/pkgs/development/libraries/hwloc/default.nix
@@ -8,11 +8,11 @@
 
 stdenv.mkDerivation rec {
   pname = "hwloc";
-  version = "2.9.0";
+  version = "2.9.1";
 
   src = fetchurl {
     url = "https://www.open-mpi.org/software/hwloc/v${lib.versions.majorMinor version}/downloads/hwloc-${version}.tar.bz2";
-    sha256 = "sha256-IHDpY1lqJCG5r47KQ73sET7hEHqvfMtHXU03Z6iFaIc=";
+    sha256 = "sha256-fMSTGiD+9Ffgkzrz83W+bq+ncD/eIeE3v7loWxQJWZ4=";
   };
 
   configureFlags = [