diff --git a/pkgs/servers/mobilizon/0001-fix-version.patch b/pkgs/servers/mobilizon/0001-fix-version.patch
index da4d8f436a52..8bf6b2dcda86 100644
--- a/pkgs/servers/mobilizon/0001-fix-version.patch
+++ b/pkgs/servers/mobilizon/0001-fix-version.patch
@@ -7,7 +7,7 @@ index 8338abf8..883e6987 100644
    use Mix.Project
  
 -  @version "5.1.0"
-+  @version "5.1.1"
++  @version "5.1.2"
  
    def project do
      [
diff --git a/pkgs/servers/mobilizon/common.nix b/pkgs/servers/mobilizon/common.nix
index f6fa1a72cb76..1bf19e3245d4 100644
--- a/pkgs/servers/mobilizon/common.nix
+++ b/pkgs/servers/mobilizon/common.nix
@@ -1,13 +1,14 @@
-{ fetchFromGitLab }: rec {
+{ fetchFromGitLab }:
+rec {
 
   pname = "mobilizon";
-  version = "5.1.1";
+  version = "5.1.2";
 
   src = fetchFromGitLab {
     domain = "framagit.org";
     owner = "framasoft";
     repo = pname;
-    rev = version;
-    sha256 = "sha256-zH/F+8rqzlMh0itVBOgDDzAx6n1nJH81lMzaBfjzhXU=";
+    tag = version;
+    sha256 = "sha256-5xHLk5/ogtRN3mfJPP1/gIVlALerT9KEUHjLA2Ou3aM=";
   };
 }
diff --git a/pkgs/servers/mobilizon/default.nix b/pkgs/servers/mobilizon/default.nix
index f8ae27a81ece..390f9879bbff 100644
--- a/pkgs/servers/mobilizon/default.nix
+++ b/pkgs/servers/mobilizon/default.nix
@@ -8,6 +8,7 @@
   git,
   cmake,
   nixosTests,
+  nixfmt-rfc-style,
   mobilizon-frontend,
   ...
 }:
@@ -20,9 +21,8 @@ mixRelease rec {
   inherit (common) pname version src;
 
   patches = [
-    # Version 5.1.1 failed to bump their internal package version,
+    # Version 5.1.2 failed to bump their internal package version,
     # which causes issues with static file serving in the NixOS module.
-    # See https://github.com/NixOS/nixpkgs/pull/370277
     ./0001-fix-version.patch
     # Mobilizon uses chunked Transfer-Encoding for the media proxy but also
     # sets the Content-Length header. This is a HTTP/1.1 protocol violation
@@ -153,11 +153,12 @@ mixRelease rec {
   '';
 
   passthru = {
-    tests.smoke-test = nixosTests.mobilizon;
+    tests = { inherit (nixosTests) mobilizon; };
     updateScript = writeShellScriptBin "update.sh" ''
       set -eou pipefail
 
       ${mix2nix}/bin/mix2nix '${src}/mix.lock' > pkgs/servers/mobilizon/mix.nix
+      ${nixfmt-rfc-style}/bin/nixfmt pkgs/servers/mobilizon/mix.nix
     '';
     elixirPackage = beamPackages.elixir;
   };
@@ -165,6 +166,7 @@ mixRelease rec {
   meta = with lib; {
     description = "Mobilizon is an online tool to help manage your events, your profiles and your groups";
     homepage = "https://joinmobilizon.org/";
+    changelog = "https://framagit.org/framasoft/mobilizon/-/releases/${src.tag}";
     license = licenses.agpl3Plus;
     maintainers = with maintainers; [
       minijackson