diff --git a/pkgs/by-name/kr/krop/package.nix b/pkgs/by-name/kr/krop/package.nix
index 93e24b24b53b..889cd4317e04 100644
--- a/pkgs/by-name/kr/krop/package.nix
+++ b/pkgs/by-name/kr/krop/package.nix
@@ -1,6 +1,32 @@
-{ lib, fetchFromGitHub, python3Packages, libsForQt5, ghostscript, qt5}:
+{
+  lib,
+  fetchFromGitHub,
+  python3,
+  libsForQt5,
+  ghostscript,
+  qt5,
+  fetchPypi,
+}:
 
-python3Packages.buildPythonApplication rec {
+let
+  py = python3.override {
+    self = py;
+    packageOverrides = self: super: {
+      # Can be removed once this is merged
+      # https://github.com/arminstraub/krop/pull/40
+      pypdf2 = super.pypdf2.overridePythonAttrs (oldAttrs: rec {
+        version = "2.12.1";
+        src = fetchPypi {
+          pname = "PyPDF2";
+          inherit version;
+          hash = "sha256-4D7xirzHXadBoKzBp3SSU0loh744zZiHvM4c7jk9pF4=";
+        };
+      });
+    };
+  };
+in
+
+py.pkgs.buildPythonApplication rec {
   pname = "krop";
   version = "0.6.0";
 
@@ -11,21 +37,21 @@ python3Packages.buildPythonApplication rec {
     sha256 = "1ygzc7vlwszqmsd3v1dsqp1dpsn6inx7g8gck63alvf88dbn8m3s";
   };
 
-  propagatedBuildInputs = with python3Packages; [
+  propagatedBuildInputs = with py.pkgs; [
     pyqt5
     pypdf2
     poppler-qt5
     ghostscript
   ];
+
   buildInputs = [
     libsForQt5.poppler
     libsForQt5.qtwayland
   ];
 
   nativeBuildInputs = [ qt5.wrapQtAppsHook ];
-  makeWrapperArgs = [
-   "\${qtWrapperArgs[@]}"
-  ];
+
+  makeWrapperArgs = [ "\${qtWrapperArgs[@]}" ];
 
   postInstall = ''
     install -m666 -Dt $out/share/applications krop.desktop
@@ -37,17 +63,17 @@ python3Packages.buildPythonApplication rec {
   meta = {
     homepage = "http://arminstraub.com/software/krop";
     description = "Graphical tool to crop the pages of PDF files";
-    mainProgram = "krop";
     longDescription = ''
-    Krop is a tool that allows you to optimise your PDF files, and remove
-    sections of the page you do not want.  A unique feature of krop, at least to my
-    knowledge, is its ability to automatically split pages into subpages to fit the
-    limited screensize of devices such as eReaders. This is particularly useful, if
-    your eReader does not support convenient scrolling. Krop also has a command line
-    interface.
+      Krop is a tool that allows you to optimise your PDF files, and remove
+      sections of the page you do not want.  A unique feature of krop, at least to my
+      knowledge, is its ability to automatically split pages into subpages to fit the
+      limited screensize of devices such as eReaders. This is particularly useful, if
+      your eReader does not support convenient scrolling. Krop also has a command line
+      interface.
     '';
     license = lib.licenses.gpl3Plus;
     maintainers = with lib.maintainers; [ leenaars ];
     platforms = lib.platforms.linux;
+    mainProgram = "krop";
   };
 }