diff --git a/nixos/modules/services/web-apps/keycloak.nix b/nixos/modules/services/web-apps/keycloak.nix
index 6d472cf48cd01..1bca932932cd7 100644
--- a/nixos/modules/services/web-apps/keycloak.nix
+++ b/nixos/modules/services/web-apps/keycloak.nix
@@ -650,6 +650,7 @@ in
 
               ln -s ${themesBundle} /run/keycloak/themes
               ln -s ${keycloakBuild}/providers /run/keycloak/
+              ln -s ${keycloakBuild}/lib /run/keycloak/
 
               install -D -m 0600 ${confFile} /run/keycloak/conf/keycloak.conf
 
diff --git a/nixos/tests/keycloak.nix b/nixos/tests/keycloak.nix
index 67b412c80961d..aeb851174219f 100644
--- a/nixos/tests/keycloak.nix
+++ b/nixos/tests/keycloak.nix
@@ -20,6 +20,8 @@ let
 
       nodes = {
         keycloak = { config, ... }: {
+          virtualisation.memorySize = 2047;
+
           security.pki.certificateFiles = [
             certs.ca.cert
           ];
diff --git a/pkgs/servers/keycloak/default.nix b/pkgs/servers/keycloak/default.nix
index 743607a3f4718..3ee0ff18a16f5 100644
--- a/pkgs/servers/keycloak/default.nix
+++ b/pkgs/servers/keycloak/default.nix
@@ -7,7 +7,7 @@
 , callPackage
 , confFile ? null
 , plugins ? [ ]
-, extraFeatures ? [ ]
+, extraFeatures ? [ "hostname:v1" ]
 , disabledFeatures ? [ ]
 }:
 
@@ -18,11 +18,11 @@ let
   '';
 in stdenv.mkDerivation rec {
   pname = "keycloak";
-  version = "24.0.5";
+  version = "25.0.6";
 
   src = fetchzip {
     url = "https://github.com/keycloak/keycloak/releases/download/${version}/keycloak-${version}.zip";
-    hash = "sha256-lf1miVEGQvPbmlOZMCXUyX/pKE+JoJFawhjVEPJDJ6s=";
+    hash = "sha256-1VHixRgErao/1ZEJv+rlnNmUd2NT35X89D8wuUhYF08=";
   };
 
   nativeBuildInputs = [ makeWrapper jre ];
diff --git a/pkgs/servers/keycloak/keycloak-metrics-spi/default.nix b/pkgs/servers/keycloak/keycloak-metrics-spi/default.nix
index 82e6163491ba9..55f94aa6073f1 100644
--- a/pkgs/servers/keycloak/keycloak-metrics-spi/default.nix
+++ b/pkgs/servers/keycloak/keycloak-metrics-spi/default.nix
@@ -1,21 +1,21 @@
-{ maven, stdenv, lib, fetchFromGitHub }:
+{
+  maven,
+  lib,
+  fetchFromGitHub,
+}:
 
 maven.buildMavenPackage rec {
   pname = "keycloak-metrics-spi";
-  version = "5.0.0";
+  version = "6.0.0";
 
   src = fetchFromGitHub {
     owner = "aerogear";
     repo = pname;
     rev = "refs/tags/${version}";
-    hash = "sha256-iagXbsKsU4vNP9eg05bwXEo67iij3N2FF0BW50MjRGE=";
+    hash = "sha256-MMonBRau8FpfCqija6NEdvp4zJfEub2Kwk4MA7FYWHI=";
   };
 
-  mvnHash = {
-    aarch64-linux = "sha256-zO79pRrY8TqrSK4bB8l4pl6834aFX2pidyk1j9Itz1E=`";
-    x86_64-linux = "sha256-+ySBrQ9yQ5ZxuVUh/mnHNEmugru3n8x5VR/RYEDCLAo=";
-  }.${stdenv.hostPlatform.system} or (throw "Unsupported system ${stdenv.hostPlatform.system} for ${pname}");
-
+  mvnHash = "sha256-IrqDybt9bltX0WbGpbEXORHGFC/1f2Y9izSBPTrYCaY=";
 
   installPhase = ''
     runHook preInstall
@@ -23,11 +23,11 @@ maven.buildMavenPackage rec {
     runHook postInstall
   '';
 
-  meta = with lib; {
+  meta = {
     homepage = "https://github.com/aerogear/keycloak-metrics-spi";
     description = "Keycloak Service Provider that adds a metrics endpoint";
-    license = licenses.asl20;
-    maintainers = with maintainers; [ benley ];
-    platforms = [ "aarch64-linux" "x86_64-linux" ];
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [ benley ];
+    platforms = lib.platforms.linux;
   };
 }