diff --git a/pkgs/applications/networking/instant-messengers/pantalaimon/default.nix b/pkgs/applications/networking/instant-messengers/pantalaimon/default.nix
index 2fcf65dfc1c2..c7d8ce4b56d5 100644
--- a/pkgs/applications/networking/instant-messengers/pantalaimon/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pantalaimon/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, buildPythonApplication, fetchPypi, pythonOlder,
+{ lib, stdenv, buildPythonApplication, fetchFromGitHub, pythonOlder,
   attrs, aiohttp, appdirs, click, keyring, Logbook, peewee, janus,
   prompt_toolkit, matrix-nio, dbus-python, pydbus, notify2, pygobject3,
 
@@ -9,13 +9,16 @@
 
 buildPythonApplication rec {
   pname = "pantalaimon";
-  version = "0.4";
+  version = "0.5.1";
 
   disabled = pythonOlder "3.6";
 
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "1canj9w72wh1rcw6fivrvaahpxy13gb6gh1k8nss6bgixalvnq9m";
+  # pypi tarball miss tests
+  src = fetchFromGitHub {
+    owner = "matrix-org";
+    repo = pname;
+    rev = version;
+    sha256 = "18jihvqlfk8lx97hxcr36zdkp2sffg2l8mkg5lflylwcgwy1dx0y";
   };
 
   propagatedBuildInputs = [