diff --git a/pkgs/by-name/is/ispc/package.nix b/pkgs/by-name/is/ispc/package.nix
index 4c9d2a10717b..17a6a8ef2fa3 100644
--- a/pkgs/by-name/is/ispc/package.nix
+++ b/pkgs/by-name/is/ispc/package.nix
@@ -21,7 +21,7 @@
 
 stdenv.mkDerivation rec {
   pname = "ispc";
-  version = "1.27.0";
+  version = "1.28.0";
 
   dontFixCmake = true; # https://github.com/NixOS/nixpkgs/pull/232522#issuecomment-2133803566
 
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
     owner = "ispc";
     repo = "ispc";
     rev = "v${version}";
-    sha256 = "sha256-nNiAlQ+MLkOV0/xLafsUNPV5HKCIqWCD2Fo8ChgFJMk=";
+    sha256 = "sha256-JnJGpuhbABD6/93EBeDJH441nDlG4CKHcyOoTHJ3QcU=";
   };
 
   nativeBuildInputs = [