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 73baf71f5ef5..4fff255e065b 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
@@ -524,6 +524,17 @@ Superuser created successfully.
           <link xlink:href="options.html#opt-services.geoipupdate.enable">services.geoipupdate</link>.
         </para>
       </listitem>
+      <listitem>
+        <para>
+          <literal>ihatemoney</literal> has been updated to version
+          5.1.1
+          (<link xlink:href="https://github.com/spiral-project/ihatemoney/blob/5.1.1/CHANGELOG.rst">release
+          notes</link>). If you serve ihatemoney by HTTP rather than
+          HTTPS, you must set
+          <link xlink:href="options.html#opt-services.ihatemoney.secureCookie">services.ihatemoney.secureCookie</link>
+          to <literal>false</literal>.
+        </para>
+      </listitem>
       <listitem>
         <para>
           PHP 7.3 is no longer supported due to upstream not supporting
diff --git a/nixos/doc/manual/release-notes/rl-2111.section.md b/nixos/doc/manual/release-notes/rl-2111.section.md
index b7fa2cf0f254..6e3084ad0f54 100644
--- a/nixos/doc/manual/release-notes/rl-2111.section.md
+++ b/nixos/doc/manual/release-notes/rl-2111.section.md
@@ -195,6 +195,8 @@ In addition to numerous new and upgraded packages, this release has the followin
 
 - `services.geoip-updater` was broken and has been replaced by [services.geoipupdate](options.html#opt-services.geoipupdate.enable).
 
+- `ihatemoney` has been updated to version 5.1.1 ([release notes](https://github.com/spiral-project/ihatemoney/blob/5.1.1/CHANGELOG.rst)). If you serve ihatemoney by HTTP rather than HTTPS, you must set [services.ihatemoney.secureCookie](options.html#opt-services.ihatemoney.secureCookie) to `false`.
+
 - PHP 7.3 is no longer supported due to upstream not supporting this version for the entire lifecycle of the 21.11 release.
 
 - Those making use of `buildBazelPackage` will need to regenerate the fetch hashes (preferred), or set `fetchConfigured = false;`.