diff --git a/nixos/doc/manual/from_md/release-notes/rl-2111.section.xml b/nixos/doc/manual/from_md/release-notes/rl-2111.section.xml
index b922f9f12082..2be2c66080d1 100644
--- a/nixos/doc/manual/from_md/release-notes/rl-2111.section.xml
+++ b/nixos/doc/manual/from_md/release-notes/rl-2111.section.xml
@@ -22,7 +22,7 @@
       </listitem>
       <listitem>
         <para>
-          kOps now defaults to 1.21.0, which uses containerd as the
+          kOps now defaults to 1.21.1, which uses containerd as the
           default runtime.
         </para>
       </listitem>
diff --git a/nixos/doc/manual/release-notes/rl-2111.section.md b/nixos/doc/manual/release-notes/rl-2111.section.md
index c7e5afb7d0af..6db546caba33 100644
--- a/nixos/doc/manual/release-notes/rl-2111.section.md
+++ b/nixos/doc/manual/release-notes/rl-2111.section.md
@@ -7,7 +7,8 @@ In addition to numerous new and upgraded packages, this release has the followin
 ## Highlights {#sec-release-21.11-highlights}
 
 - PHP now defaults to PHP 8.0, updated from 7.4.
-- kOps now defaults to 1.21.0, which uses containerd as the default runtime.
+
+- kOps now defaults to 1.21.1, which uses containerd as the default runtime.
 
 - `python3` now defaults to Python 3.9, updated from Python 3.8.
 
diff --git a/pkgs/applications/networking/cluster/kops/default.nix b/pkgs/applications/networking/cluster/kops/default.nix
index 389be11e506c..8487afc208dd 100644
--- a/pkgs/applications/networking/cluster/kops/default.nix
+++ b/pkgs/applications/networking/cluster/kops/default.nix
@@ -65,8 +65,8 @@ rec {
   };
 
   kops_1_21 = mkKops rec {
-    version = "1.21.0";
-    sha256 = "sha256-T2i3qpg3GC7yaYCGrN1V5XXrUyT+Ce9Q4aV00gQJ7gM=";
+    version = "1.21.1";
+    sha256 = "sha256-/C/fllgfAovHuyGRY+LM09bsUpYdA8zDw1w0b9HnlBc=";
     rev = "v${version}";
   };
 }