diff --git a/pkgs/tools/text/html-tidy/default.nix b/pkgs/tools/text/html-tidy/default.nix
index 15ee4c756480..6caa3d34a0c9 100644
--- a/pkgs/tools/text/html-tidy/default.nix
+++ b/pkgs/tools/text/html-tidy/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "html-tidy";
-  version = "5.6.0";
+  version = "5.7.28";
 
   src = fetchFromGitHub {
     owner = "htacg";
     repo = "tidy-html5";
     rev = version;
-    sha256 = "0w175c5d1babq0w1zzdzw9gl6iqbgyq58v8587s7srp05y3hwy9k";
+    sha256 = "sha256-Tny53PtaQWAMAEjqw4tKnmGURfZhhwFQNCJr9jjWZQY=";
   };
 
   nativeBuildInputs = [ cmake libxslt/*manpage*/ ];