diff --git a/pkgs/applications/networking/cluster/kops/default.nix b/pkgs/applications/networking/cluster/kops/default.nix
index bcd0b78f7a52..358517822cd1 100644
--- a/pkgs/applications/networking/cluster/kops/default.nix
+++ b/pkgs/applications/networking/cluster/kops/default.nix
@@ -62,6 +62,10 @@ rec {
   };
 
   kops_1_28 = mkKops rec {
+    version = "1.28.5";
+    sha256 = "sha256-spw3lTrp6RlxkTNoZ/3Yz/U2tdvBnwiYORS2QtOSX9k=";
+    rev = "v${version}";
+  };
     version = "1.29.0";
     sha256 = "sha256-YneB9pc4IR+tYPRFE5CS+4JK/kPOHMo5/70A3k1x1tg=";
     rev = "v${version}";