diff --git a/pkgs/development/arduino/platformio/chrootenv.nix b/pkgs/development/arduino/platformio/chrootenv.nix
index 81cc8f371f4f..72384c0994a2 100644
--- a/pkgs/development/arduino/platformio/chrootenv.nix
+++ b/pkgs/development/arduino/platformio/chrootenv.nix
@@ -1,11 +1,11 @@
-{ lib, buildFHSUserEnv, fetchFromGitHub }:
+{ lib, buildFHSUserEnv, version, src }:
 
 let
   pio-pkgs = pkgs:
     let
       python = pkgs.python3.override {
         packageOverrides = self: super: {
-          platformio = self.callPackage ./core.nix { };
+          platformio = self.callPackage ./core.nix { inherit version src; };
         };
       };
     in (with pkgs; [
@@ -19,14 +19,6 @@ let
       platformio
     ]);
 
-  src = fetchFromGitHub {
-    owner = "platformio";
-    repo = "platformio-core";
-    rev = "v5.0.2";
-    sha256 = "1hbw8nbllyj0xyx1rz2chx9vyqf9949dcdx4v9hnfbsjwwpcfi0a";
-  };
-
-
 in buildFHSUserEnv {
   name = "platformio";
 
diff --git a/pkgs/development/arduino/platformio/core.nix b/pkgs/development/arduino/platformio/core.nix
index 42e1e49b41fb..a039314d753d 100644
--- a/pkgs/development/arduino/platformio/core.nix
+++ b/pkgs/development/arduino/platformio/core.nix
@@ -1,9 +1,10 @@
-{ stdenv, lib, buildPythonApplication, fetchFromGitHub, fetchpatch
+{ stdenv, lib, buildPythonApplication, fetchpatch
 , bottle, click, colorama, semantic-version
 , lockfile, pyserial, requests
 , tabulate, pyelftools, marshmallow
 , pytest, tox, jsondiff
 , git, spdx-license-list-data
+, version, src
 }:
 
 let
@@ -75,15 +76,7 @@ let
 
 in buildPythonApplication rec {
   pname = "platformio";
-  version = "5.0.2";
-
-  # pypi tarballs don't contain tests - https://github.com/platformio/platformio-core/issues/1964
-  src = fetchFromGitHub {
-    owner = "platformio";
-    repo = "platformio-core";
-    rev = "v${version}";
-    sha256 = "1hbw8nbllyj0xyx1rz2chx9vyqf9949dcdx4v9hnfbsjwwpcfi0a";
-  };
+  inherit version src;
 
   propagatedBuildInputs =  [
     bottle click colorama git lockfile
diff --git a/pkgs/development/arduino/platformio/default.nix b/pkgs/development/arduino/platformio/default.nix
index 280fd496650c..248d07adf6e1 100644
--- a/pkgs/development/arduino/platformio/default.nix
+++ b/pkgs/development/arduino/platformio/default.nix
@@ -1,11 +1,21 @@
 
-{ newScope }:
+{ newScope, fetchFromGitHub }:
 
 let
   callPackage = newScope self;
 
+  version = "5.0.3";
+
+  # pypi tarballs don't contain tests - https://github.com/platformio/platformio-core/issues/1964
+  src = fetchFromGitHub {
+    owner = "platformio";
+    repo = "platformio-core";
+    rev = "v${version}";
+    sha256 = "0sf5dy0cmhy66rmk0hq1by7nrmf7qz0a99hrk55dpbp6r6vnk3hw";
+  };
+
   self = {
-      platformio-chrootenv = callPackage ./chrootenv.nix { };
+    platformio-chrootenv = callPackage ./chrootenv.nix { inherit version src; };
   };
 
 in self