diff --git a/nixos/modules/services/web-apps/discourse.nix b/nixos/modules/services/web-apps/discourse.nix
index 7a5123392ee8..a5b74025318c 100644
--- a/nixos/modules/services/web-apps/discourse.nix
+++ b/nixos/modules/services/web-apps/discourse.nix
@@ -733,14 +733,14 @@ in
       after = [
         "redis-discourse.service"
         "postgresql.target"
-        "discourse-postgresql.target"
+        "discourse-postgresql.service"
       ];
       bindsTo = [
         "redis-discourse.service"
       ]
       ++ lib.optionals (cfg.database.host == null) [
         "postgresql.target"
-        "discourse-postgresql.target"
+        "discourse-postgresql.service"
       ];
       path = cfg.package.runtimeDeps ++ [
         postgresqlPackage
diff --git a/nixos/tests/all-tests.nix b/nixos/tests/all-tests.nix
index 76867b74b49d..2784afd2ee87 100644
--- a/nixos/tests/all-tests.nix
+++ b/nixos/tests/all-tests.nix
@@ -422,7 +422,14 @@ in
   dex-oidc = runTest ./dex-oidc.nix;
   dhparams = runTest ./dhparams.nix;
   disable-installer-tools = runTest ./disable-installer-tools.nix;
-  discourse = runTest ./discourse.nix;
+  discourse = runTest {
+    imports = [ ./discourse.nix ];
+    _module.args.package = pkgs.discourse;
+  };
+  discourseAllPlugins = runTest {
+    imports = [ ./discourse.nix ];
+    _module.args.package = pkgs.discourseAllPlugins;
+  };
   dnscrypt-proxy2 = runTestOn [ "x86_64-linux" ] ./dnscrypt-proxy2.nix;
   dnsdist = import ./dnsdist.nix { inherit pkgs runTest; };
   doas = runTest ./doas.nix;
diff --git a/nixos/tests/discourse.nix b/nixos/tests/discourse.nix
index e76d0a3862ba..e4b15cd10076 100644
--- a/nixos/tests/discourse.nix
+++ b/nixos/tests/discourse.nix
@@ -4,9 +4,9 @@
 #  3. replying to that message via email.
 
 {
+  lib,
   package,
   pkgs,
-  lib,
   ...
 }:
 let
@@ -26,8 +26,6 @@ in
   name = "discourse";
   meta.maintainers = with lib.maintainers; [ talyz ];
 
-  _module.args.package = lib.mkDefault pkgs.discourse;
-
   nodes.discourse =
     { nodes, ... }:
     {
@@ -62,7 +60,7 @@ in
 
       services.discourse = {
         enable = true;
-        inherit admin;
+        inherit admin package;
         hostname = discourseDomain;
         sslCertificate = "${certs.${discourseDomain}.cert}";
         sslCertificateKey = "${certs.${discourseDomain}.key}";
diff --git a/pkgs/servers/web-apps/discourse/default.nix b/pkgs/servers/web-apps/discourse/default.nix
index e8186c8b7716..0a103f914ba9 100644
--- a/pkgs/servers/web-apps/discourse/default.nix
+++ b/pkgs/servers/web-apps/discourse/default.nix
@@ -8,9 +8,9 @@
   fetchFromGitHub,
   bundlerEnv,
   callPackage,
+  nixosTests,
 
   ruby_3_3,
-  replace,
   gzip,
   gnutar,
   git,
@@ -43,16 +43,16 @@
   uglify-js,
 
   plugins ? [ ],
-}@args:
+}:
 
 let
-  version = "3.4.4";
+  version = "3.4.6";
 
   src = fetchFromGitHub {
     owner = "discourse";
     repo = "discourse";
     rev = "v${version}";
-    sha256 = "sha256-rA42fOhSJVrNPcFSB2+On7JVeZch8t2yNo+36UK+QcA=";
+    sha256 = "sha256-HS13jNhSrPo7CHAk2zZEKSt54lBTw1PdMCIJUO0rjLc=";
   };
 
   ruby = ruby_3_3;
@@ -433,13 +433,13 @@ let
       enabledPlugins = plugins;
       plugins = callPackage ./plugins/all-plugins.nix { inherit mkDiscoursePlugin; };
       ruby = rubyEnv.wrappedRuby;
-      tests = import ../../../../nixos/tests/discourse.nix {
-        inherit (stdenv) system;
-        inherit pkgs;
-        package = pkgs.discourse.override args;
+      tests = {
+        inherit (nixosTests)
+          discourse
+          discourseAllPlugins
+          ;
       };
     };
-
     meta = with lib; {
       homepage = "https://www.discourse.org/";
       platforms = platforms.linux;
diff --git a/pkgs/servers/web-apps/discourse/rubyEnv/Gemfile.lock b/pkgs/servers/web-apps/discourse/rubyEnv/Gemfile.lock
index 92f647c7d9de..c05f581c03f3 100644
--- a/pkgs/servers/web-apps/discourse/rubyEnv/Gemfile.lock
+++ b/pkgs/servers/web-apps/discourse/rubyEnv/Gemfile.lock
@@ -745,4 +745,4 @@ DEPENDENCIES
   zeitwerk
 
 BUNDLED WITH
-   2.6.6
+   2.6.9