diff --git a/pkgs/servers/amqp/rabbitmq-server/default.nix b/pkgs/servers/amqp/rabbitmq-server/default.nix
index b38a3147b585d..dc47265ce4f32 100644
--- a/pkgs/servers/amqp/rabbitmq-server/default.nix
+++ b/pkgs/servers/amqp/rabbitmq-server/default.nix
@@ -38,12 +38,12 @@ in
 
 stdenv.mkDerivation rec {
   pname = "rabbitmq-server";
-  version = "3.10.8";
+  version = "3.11.6";
 
   # 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";
-    sha256 = "sha256-kDt2HuVBw88zdFBsDXHNgCVDkvWMVeAzrIzj68+NOyk=";
+    hash = "sha256-gwLr5oXviZdgNxUpEezqNT+0n6Blt6RlHMe4+OZjFDc=";
   };
 
   nativeBuildInputs = [ unzip xmlto docbook_xml_dtd_45 docbook_xsl zip rsync python3 ];
@@ -52,7 +52,10 @@ stdenv.mkDerivation rec {
 
   outputs = [ "out" "man" "doc" ];
 
-  installFlags = [ "PREFIX=$(out)" "RMQ_ERLAPP_DIR=$(out)" ];
+  installFlags = [
+    "PREFIX=${placeholder "out"}"
+    "RMQ_ERLAPP_DIR=${placeholder "out"}"
+  ];
   installTargets = [ "install" "install-man" ];
 
   preBuild = ''
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index becb9421f914d..935190e22c648 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -24862,8 +24862,7 @@ with pkgs;
 
   rabbitmq-server = callPackage ../servers/amqp/rabbitmq-server {
     inherit (darwin.apple_sdk.frameworks) AppKit Carbon Cocoa;
-    elixir = elixir_1_12;
-    erlang = erlang.override { opensslPackage = openssl_1_1; };
+    elixir = elixir_1_14;
   };
 
   radicale2 = callPackage ../servers/radicale/2.x.nix { };