diff --git a/pkgs/development/python-modules/python-rapidjson/default.nix b/pkgs/development/python-modules/python-rapidjson/default.nix
index 3ea015c19d51..6a631e49875e 100644
--- a/pkgs/development/python-modules/python-rapidjson/default.nix
+++ b/pkgs/development/python-modules/python-rapidjson/default.nix
@@ -2,7 +2,6 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
-  fetchpatch,
   pythonOlder,
   rapidjson,
   pytestCheckHook,
@@ -11,26 +10,8 @@
   substituteAll,
 }:
 
-let
-  rapidjson' = rapidjson.overrideAttrs (old: {
-    version = "unstable-2023-03-06";
-    src = fetchFromGitHub {
-      owner = "Tencent";
-      repo = "rapidjson";
-      rev = "5e17dbed34eef33af8f3e734820b5dc547a2a3aa";
-      hash = "sha256-CTy42X6P6+Gz4WbJ3tCpAw3qqlJ+mU1PaWW9LGG+6nU=";
-    };
-    patches = [
-      (fetchpatch {
-        name = "do-not-include-gtest-src-dir.patch";
-        url = "https://git.alpinelinux.org/aports/plain/community/rapidjson/do-not-include-gtest-src-dir.patch?id=9e5eefc7a5fcf5938a8dc8a3be8c75e9e6809909";
-        hash = "sha256-BjSZEwfCXA/9V+kxQ/2JPWbc26jQn35CfN8+8NW24s4=";
-      })
-    ];
-  });
-in
 buildPythonPackage rec {
-  version = "1.18";
+  version = "1.20";
   pname = "python-rapidjson";
   disabled = pythonOlder "3.8";
 
@@ -40,13 +21,13 @@ buildPythonPackage rec {
     owner = "python-rapidjson";
     repo = "python-rapidjson";
     rev = "refs/tags/v${version}";
-    hash = "sha256-4gJm6EnT6YNg+EkkBPiPQ4TBGG/u+FZTK4bKWyqw1pM=";
+    hash = "sha256-xIswmHQMl5pAqvcTNqeuO3P6MynKt3ahzUgGQroaqmw=";
   };
 
   patches = [
     (substituteAll {
       src = ./rapidjson-include-dir.patch;
-      rapidjson = lib.getDev rapidjson';
+      rapidjson = lib.getDev rapidjson;
     })
   ];