diff --git a/pkgs/development/python-modules/gaphas/default.nix b/pkgs/development/python-modules/gaphas/default.nix
index 9569c1c8e10e..108bf9c3479f 100644
--- a/pkgs/development/python-modules/gaphas/default.nix
+++ b/pkgs/development/python-modules/gaphas/default.nix
@@ -12,14 +12,14 @@
 
 buildPythonPackage rec {
   pname = "gaphas";
-  version = "3.8.1";
+  version = "3.8.4";
   disabled = pythonOlder "3.7";
 
   format = "pyproject";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-mT9o/qV+SkJHV1MDwu/bK5HAiHM5YEv354R0HiMgTb8=";
+    sha256 = "sha256-dfAkjPcA/fW50fsOT6lqwPRsdvkVUThSnKIHUmNm/8U=";
   };
 
   nativeBuildInputs = [