diff --git a/pkgs/by-name/ju/justbuild/package.nix b/pkgs/by-name/ju/justbuild/package.nix
index 2192558735b4..9293bf217992 100644
--- a/pkgs/by-name/ju/justbuild/package.nix
+++ b/pkgs/by-name/ju/justbuild/package.nix
@@ -34,13 +34,13 @@ let
 in
 stdenv.mkDerivation rec {
   pname = "justbuild";
-  version = "1.6.5";
+  version = "1.6.6";
 
   src = fetchFromGitHub {
     owner = "just-buildsystem";
     repo = "justbuild";
     tag = "v${version}";
-    hash = "sha256-aeBIgbjSD9iVhwtkOOs63Xrpn8OshoABtOZhrjn3/jw=";
+    hash = "sha256-WvoH4xPtXbF0QoJLVOcrajavfbsEdnFSV+P6eTWV/vA=";
   };
 
   bazelapi = fetchurl {