diff --git a/pkgs/servers/amqp/rabbitmq-server/default.nix b/pkgs/servers/amqp/rabbitmq-server/default.nix
index 3d36202e8616..57cec51933fc 100644
--- a/pkgs/servers/amqp/rabbitmq-server/default.nix
+++ b/pkgs/servers/amqp/rabbitmq-server/default.nix
@@ -8,6 +8,7 @@ stdenv.mkDerivation rec {
 
   version = "3.7.15";
 
+  # when updating, consider bumping elixir version in all-packages.nix
   src = fetchurl {
     url = "https://github.com/rabbitmq/rabbitmq-server/releases/download/v${version}/${name}.tar.xz";
     sha256 = "14ipnvcrwln9mwr4r32461js2gdlrr4h4hy92393ixbkscf9wdir";
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 1acc477c0664..674c9dd25a72 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -14743,7 +14743,7 @@ in
 
   rabbitmq-server = callPackage ../servers/amqp/rabbitmq-server {
     inherit (darwin.apple_sdk.frameworks) AppKit Carbon Cocoa;
-    elixir = elixir_1_6;
+    elixir = elixir_1_8;
     erlang = erlang_nox;
   };