diff --git a/pkgs/development/tools/nc4nix/default.nix b/pkgs/development/tools/nc4nix/default.nix
index c8bddd684925..acfac70d4bc4 100644
--- a/pkgs/development/tools/nc4nix/default.nix
+++ b/pkgs/development/tools/nc4nix/default.nix
@@ -6,7 +6,7 @@
 , fetchpatch
 }:
 
-buildGoModule rec {
+buildGoModule {
   pname = "nc4nix";
   version = "unstable-2023-06-06";
 
@@ -25,6 +25,15 @@ buildGoModule rec {
       sha256 = "sha256-0JxyhSQLtlgLtsMv82wMjQHGdmOoQ2dcPPNAw2cFByE=";
       name = "switch_hash_calculation_method.patch";
     })
+
+    # Fix invalid entries (pre-releases of apps are not to be taken into account,
+    # but if only pre-releases are compatible with a given Nextcloud version,
+    # invalid entries are generated)
+    (fetchpatch {
+      url = "https://github.com/helsinki-systems/nc4nix/commit/c48131b5ca382585fd3294d51d59acc1e92fadb1.patch";
+      sha256 = "sha256-/zc3Smjd6CksC5wUvoB6uAyTzPcIgqimb+zASIuTft0=";
+      excludes = [ "25.json" "26.json" "27.json" ];
+    })
   ];
 
   vendorSha256 = "sha256-uhINWxFny/OY7M2vV3ehFzP90J6Z8cn5IZHWOuEg91M=";
diff --git a/pkgs/servers/nextcloud/packages/27.json b/pkgs/servers/nextcloud/packages/27.json
index 55039c08a5b9..a00e459d8570 100644
--- a/pkgs/servers/nextcloud/packages/27.json
+++ b/pkgs/servers/nextcloud/packages/27.json
@@ -139,14 +139,6 @@
       "agpl"
     ]
   },
-  "news": {
-    "sha256": "",
-    "url": "",
-    "version": "",
-    "description": "📰 A RSS/Atom Feed reader App for Nextcloud\n\n- 📲 Synchronize your feeds with multiple mobile or desktop [clients](https://nextcloud.github.io/news/clients/)\n- 🔄 Automatic updates of your news feeds\n- 🆓 Free and open source under AGPLv3, no ads or premium functions\n\n**System Cron is currently required for this app to work**\n\nRequirements can be found [here](https://nextcloud.github.io/news/install/#dependencies)\n\nThe Changelog is available [here](https://github.com/nextcloud/news/blob/master/CHANGELOG.md)\n\nCreate a [bug report](https://github.com/nextcloud/news/issues/new/choose)\n\nCreate a [feature request](https://github.com/nextcloud/news/discussions/new)\n\nReport a [feed issue](https://github.com/nextcloud/news/discussions/new)",
-    "homepage": "https://github.com/nextcloud/news",
-    "licenses": null
-  },
   "notes": {
     "sha256": "1g4ibrymsfd2bcvmyfyrl23z2kh4bgkwrgyacvdx1glk44di6sgc",
     "url": "https://github.com/nextcloud-releases/notes/releases/download/v4.8.1/notes.tar.gz",