diff --git a/nixos/doc/manual/from_md/release-notes/rl-2211.section.xml b/nixos/doc/manual/from_md/release-notes/rl-2211.section.xml
index e9f4f707f52f..08941d9a2708 100644
--- a/nixos/doc/manual/from_md/release-notes/rl-2211.section.xml
+++ b/nixos/doc/manual/from_md/release-notes/rl-2211.section.xml
@@ -1153,6 +1153,13 @@
           <link xlink:href="options.html#opt-systemd.oomd.enableUserServices">systemd.oomd.enableUserServices</link>.
         </para>
       </listitem>
+      <listitem>
+        <para>
+          The <literal>tt-rss</literal> service performs two database
+          migrations when you first use its web UI after upgrade.
+          Consider backing up its database before updating.
+        </para>
+      </listitem>
       <listitem>
         <para>
           The <literal>pass-secret-service</literal> package now
diff --git a/nixos/doc/manual/release-notes/rl-2211.section.md b/nixos/doc/manual/release-notes/rl-2211.section.md
index 9b5257ca8e1e..137cddc9ce5e 100644
--- a/nixos/doc/manual/release-notes/rl-2211.section.md
+++ b/nixos/doc/manual/release-notes/rl-2211.section.md
@@ -352,6 +352,8 @@ Available as [services.patroni](options.html#opt-services.patroni.enable).
   [systemd.oomd.enableRootSlice](options.html#opt-systemd.oomd.enableRootSlice),
   [systemd.oomd.enableSystemSlice](options.html#opt-systemd.oomd.enableSystemSlice),
   and [systemd.oomd.enableUserServices](options.html#opt-systemd.oomd.enableUserServices).
+  
+- The `tt-rss` service performs two database migrations when you first use its web UI after upgrade. Consider backing up its database before updating.
 
 - The `pass-secret-service` package now includes systemd units from upstream, so adding it to the NixOS `services.dbus.packages` option will make it start automatically as a systemd user service when an application tries to talk to the libsecret D-Bus API.
 
diff --git a/pkgs/servers/tt-rss/default.nix b/pkgs/servers/tt-rss/default.nix
index 39615a238e35..113dedf090cf 100644
--- a/pkgs/servers/tt-rss/default.nix
+++ b/pkgs/servers/tt-rss/default.nix
@@ -1,16 +1,13 @@
-{ lib, stdenv, fetchurl }:
+{ lib, stdenv, fetchgit }:
 
 stdenv.mkDerivation rec {
   pname = "tt-rss";
-  year = "21";
-  month = "06";
-  day = "21";
-  version = "20${year}-${month}-${day}";
-  rev = "cd26dbe64c9b14418f0b2d826a38a35c6bf8a270";
+  version = "unstable-2022-10-15";
 
-  src = fetchurl {
-    url = "https://git.tt-rss.org/fox/tt-rss/archive/${rev}.tar.gz";
-    sha256 = "1dpmzi7hknv5rk2g1iw13r8zcxcwrhkd5hhf292ml0dw3cwki0gm";
+  src = fetchgit {
+    url = "https://git.tt-rss.org/fox/tt-rss.git";
+    rev = "602e8684258062937d7f554ab7889e8e02318c96";
+    sha256 = "sha256-vgRaxo998Gx9rVeZZl52jppK1v11jpEK0J0NoDMT44I=";
   };
 
   installPhase = ''
@@ -21,7 +18,7 @@ stdenv.mkDerivation rec {
 
     # see the code of Config::get_version(). you can check that the version in
     # the footer of the preferences pages is not UNKNOWN
-    echo "${year}.${month}" > $out/version_static.txt
+    echo "22.10" > $out/version_static.txt
 
     runHook postInstall
   '';
diff --git a/pkgs/servers/tt-rss/plugin-auth-ldap/default.nix b/pkgs/servers/tt-rss/plugin-auth-ldap/default.nix
index 7bff424d9f7e..c057880b05d5 100644
--- a/pkgs/servers/tt-rss/plugin-auth-ldap/default.nix
+++ b/pkgs/servers/tt-rss/plugin-auth-ldap/default.nix
@@ -2,19 +2,20 @@
 
 stdenv.mkDerivation rec {
   pname = "tt-rss-plugin-auth-ldap";
-  version = "2.0.0";
+  version = "unstable-2022-10-31";
 
   src = fetchFromGitHub {
     owner = "hydrian";
     repo = "TTRSS-Auth-LDAP";
-    rev = version;
-    sha256 = "1mg9jff2m0ajxql1vd1g7hsxfbv9smhrmjg4j2gvvjbii45ry0jh";
+    rev = "0cc2a21441f99eef8368cfe0fbdbb78126e28d61";
+    sha256 = "sha256-pJWyvRnC38Ov1awVLgFZfp8+haADPniP+/P/C74qpcA=";
   };
 
   patches = [
+    # https://github.com/hydrian/TTRSS-Auth-LDAP/pull/47
     (fetchpatch {
-      url = "https://github.com/Mic92/TTRSS-Auth-LDAP/commit/7534fa54babc377a070e05e326a46a252b5e3884.patch";
-      sha256 = "1p7zas0n627z0g226dp5m5dg1ai2z3vi69n3xivp517iv3lch70l";
+      url = "https://github.com/hydrian/TTRSS-Auth-LDAP/commit/003ca55bbd6e0a87fb729383e51eb269d918313d.patch";
+      sha256 = "sha256-0YD33JPNOOPH2dpGwA/RbV3Kg4i2oKazBjP3hBcUIes=";
     })
     # https://github.com/hydrian/TTRSS-Auth-LDAP/pull/40
     (fetchpatch {