diff --git a/pkgs/applications/radio/chirp/default.nix b/pkgs/applications/radio/chirp/default.nix
index 95d33d6f1ee..e73f438f76b 100644
--- a/pkgs/applications/radio/chirp/default.nix
+++ b/pkgs/applications/radio/chirp/default.nix
@@ -1,24 +1,39 @@
 { lib
-, fetchurl
-, python2
+, fetchFromGitHub
+, python3
+, unstableGitUpdater
 }:
-python2.pkgs.buildPythonApplication rec {
-  pname = "chirp-daily";
-  version = "20220823";
 
-  src = fetchurl {
-    url = "https://trac.chirp.danplanet.com/chirp_daily/daily-${version}/${pname}-${version}.tar.gz";
-    sha256 = "sha256-V+8HQAYU2XjOYeku0XEHqkY4m0XjiUBxM61QcupnlVM=";
+python3.pkgs.buildPythonApplication rec {
+  pname = "chirp";
+  version = "unstable-2022-12-07";
+
+  src = fetchFromGitHub {
+    owner = "kk7ds";
+    repo = "chirp";
+    rev = "dc0c98d22423b496faf0a86296a6ec0bb3b3e11a";
+    hash = "sha256-z0xD11CB7Vt8k0dPXE+E5ZD9XAFwWNxjnUs25/Gd7zI=";
   };
 
-  propagatedBuildInputs = with python2.pkgs; [
-    pygtk pyserial libxml2 future
+  propagatedBuildInputs = with python3.pkgs; [
+    future
+    pyserial
+    requests
+    six
+    wxPython_4_2
   ];
 
+  # "running build_ext" fails with no output
+  doCheck = false;
+
+  passthru.updateScript = unstableGitUpdater {
+    branch = "py3";
+  };
+
   meta = with lib; {
     description = "A free, open-source tool for programming your amateur radio";
     homepage = "https://chirp.danplanet.com/";
-    license = licenses.gpl3;
+    license = licenses.gpl3Plus;
     platforms = platforms.linux;
   };
 }