diff --git a/pkgs/applications/office/paperless-ng/default.nix b/pkgs/applications/office/paperless-ng/default.nix
index 2fcb2388b8c8..0b8abe5d3f10 100644
--- a/pkgs/applications/office/paperless-ng/default.nix
+++ b/pkgs/applications/office/paperless-ng/default.nix
@@ -1,5 +1,6 @@
 { lib
 , fetchurl
+, fetchpatch
 , nixosTests
 , python3
 , ghostscript
@@ -54,6 +55,15 @@ py.pkgs.pythonPackages.buildPythonApplication rec {
     sha256 = "oVSq0AWksuWC81MF5xiZ6ZbdKKtqqphmL+xIzJLaDMw=";
   };
 
+  patches = [
+    # Fix the `slow_write_pdf` test:
+    # https://github.com/NixOS/nixpkgs/issues/136626
+    (fetchpatch {
+      url = "https://github.com/paperless-ngx/paperless-ngx/commit/4fbabe43ea12811864e9676b04d82a82b38e799d.patch";
+      sha256 = "sha256-8ULep5aeW3wJAQGy2OEAjFYybELNq1DzCC1uBrZx36I=";
+    })
+  ];
+
   format = "other";
 
   # Make bind address configurable