diff --git a/pkgs/servers/amqp/rabbitmq-server/default.nix b/pkgs/by-name/ra/rabbitmq-server/package.nix
similarity index 96%
rename from pkgs/servers/amqp/rabbitmq-server/default.nix
rename to pkgs/by-name/ra/rabbitmq-server/package.nix
index 2e1483deeb053..9491989448724 100644
--- a/pkgs/servers/amqp/rabbitmq-server/default.nix
+++ b/pkgs/by-name/ra/rabbitmq-server/package.nix
@@ -42,12 +42,12 @@ in
 
 stdenv.mkDerivation rec {
   pname = "rabbitmq-server";
-  version = "4.0.2";
+  version = "4.0.4";
 
   # when updating, consider bumping elixir version in all-packages.nix
   src = fetchurl {
     url = "https://github.com/rabbitmq/rabbitmq-server/releases/download/v${version}/${pname}-${version}.tar.xz";
-    hash = "sha256-mSwjQTLkEWBBbbMDLZ+qldS2YDcUvp8BB+J0+RLQvZE=";
+    hash = "sha256-7ff/BFXH0MiMEV+GsfCnBPGGlgPht6gM0K43V2ogtHc=";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 38982497a655d..4f0306e00e5d2 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -12177,8 +12177,9 @@ with pkgs;
 
   qremotecontrol-server = libsForQt5.callPackage ../servers/misc/qremotecontrol-server { };
 
-  rabbitmq-server = callPackage ../servers/amqp/rabbitmq-server {
-    erlang = erlang_26;
+  rabbitmq-server = callPackage ../by-name/ra/rabbitmq-server/package.nix rec {
+    erlang = erlang_27;
+    elixir = pkgs.elixir.override { inherit erlang; };
   };
 
   radicale2 = callPackage ../servers/radicale/2.x.nix { };