diff --git a/pkgs/by-name/ku/kubetail/package.nix b/pkgs/by-name/ku/kubetail/package.nix
index dd34d5042548..9c3d723e0f3d 100644
--- a/pkgs/by-name/ku/kubetail/package.nix
+++ b/pkgs/by-name/ku/kubetail/package.nix
@@ -9,13 +9,13 @@
 
 stdenv.mkDerivation rec {
   pname = "kubetail";
-  version = "1.6.20";
+  version = "1.6.21";
 
   src = fetchFromGitHub {
     owner = "johanhaleby";
     repo = "kubetail";
     rev = version;
-    sha256 = "sha256-RbbZHKXRtbs42cCbw+xb8TLul6ebUeCiNclMFF39c3M=";
+    sha256 = "sha256-Uzr63TkveJqfZl4USo0MNdlcvofxDp+o+reZmJG5F78=";
   };
 
   nativeBuildInputs = [