diff --git a/pkgs/development/tools/build-managers/mill/default.nix b/pkgs/development/tools/build-managers/mill/default.nix
index 0aa0609ed2c7..2878fcb20d57 100644
--- a/pkgs/development/tools/build-managers/mill/default.nix
+++ b/pkgs/development/tools/build-managers/mill/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "mill";
-  version = "0.11.8";
+  version = "0.11.9";
 
   src = fetchurl {
     url = "https://github.com/com-lihaoyi/mill/releases/download/${finalAttrs.version}/${finalAttrs.version}-assembly";
-    hash = "sha256-HORTexIzrxbWjcGrS59JqZboxGCzk8wKf3eKMoYGqrI=";
+    hash = "sha256-PjwqQziWOKCO9G1Cw3SiOvdgnc01cBzgyRlOiTA8u4A=";
   };
 
   nativeBuildInputs = [ makeWrapper ];