diff --git a/pkgs/tools/package-management/nix-du/default.nix b/pkgs/tools/package-management/nix-du/default.nix
index bfa6959cf3532..8b2463ccce4c1 100644
--- a/pkgs/tools/package-management/nix-du/default.nix
+++ b/pkgs/tools/package-management/nix-du/default.nix
@@ -12,16 +12,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "nix-du";
-  version = "1.2.0";
+  version = "1.2.1";
 
   src = fetchFromGitHub {
     owner = "symphorien";
     repo = "nix-du";
     rev = "v${version}";
-    sha256 = "sha256-HfmMZVlsdg9hTWGUihl6OlQAp/n1XRvPLfAKJ8as8Ew=";
+    sha256 = "sha256-WImnfkBU17SFQG1DzVUdsNq3hkiISNjAVZr2xGbgwHg=";
   };
 
-  cargoHash = "sha256-oUxxuBqec4aI2h8BAn1WSA44UU7f5APkv0DIwuSun0M=";
+  cargoHash = "sha256-gE99nCJIi6fsuxzJuU80VWXIZqVbqwBhKM2aRlhmYco=";
 
   doCheck = true;
   nativeCheckInputs = [ nix graphviz ];