diff --git a/pkgs/tools/misc/diffoscope/default.nix b/pkgs/tools/misc/diffoscope/default.nix
index 1df7ef832b00..932b4072d105 100644
--- a/pkgs/tools/misc/diffoscope/default.nix
+++ b/pkgs/tools/misc/diffoscope/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, python3Packages, docutils, help2man, installShellFiles
+{ lib, stdenv, fetchurl, python3Packages, docutils, help2man, installShellFiles, fetchpatch
 , abootimg, acl, apksigcopier, apksigner, apktool, binutils-unwrapped-all-targets, bzip2, cbfstool, cdrkit, colord, colordiff, coreutils, cpio, db, diffutils, dtc
 , e2fsprogs, enjarify, file, findutils, fontforge-fonttools, ffmpeg, fpc, gettext, ghc, ghostscriptX, giflib, gnumeric, gnupg, gnutar
 , gzip, html2text, hdf5, imagemagick, jdk, libarchive, libcaca, llvm, lz4, mono, ocaml, oggvideotools, openssh, openssl, pdftk, pgpdump, poppler_utils, procyon, qemu, R
@@ -11,17 +11,22 @@
 # Note: when upgrading this package, please run the list-missing-tools.sh script as described below!
 python3Packages.buildPythonApplication rec {
   pname = "diffoscope";
-  version = "229";
+  version = "233";
 
   src = fetchurl {
     url = "https://diffoscope.org/archive/diffoscope-${version}.tar.bz2";
-    sha256 = "sha256-IyTBwlVqOIXERdjvZPTwxhIBPOn8Dt7QbvfBazj5J/A=";
+    sha256 = "sha256-A2GYnhdjkzSFnMsy99FmckiOsbRdymAdtjp55hyFLp4=";
   };
 
   outputs = [ "out" "man" ];
 
   patches = [
     ./ignore_links.patch
+    # test_text_proper_indentation requires file >= 5.44
+    (fetchpatch {
+      url = "https://salsa.debian.org/reproducible-builds/diffoscope/-/commit/9fdb78ec0bbc69f1980499dfdcbf6f1dd5e55cc8.patch";
+      sha256 = "sha256-F0N3L9yymj2NjeIKtSnOEDsxPe+ZTb0m/M4f8LPRHg0=";
+    })
   ];
 
   postPatch = ''
@@ -56,6 +61,11 @@ python3Packages.buildPythonApplication rec {
 
   checkInputs = with python3Packages; [ pytestCheckHook ] ++ pythonPath;
 
+  pytestFlagsArray = [
+    # always show more information when tests fail
+    "-vv"
+  ];
+
   postInstall = ''
     make -C doc
     installManPage doc/diffoscope.1