diff --git a/pkgs/development/python-modules/python-fx/default.nix b/pkgs/development/python-modules/python-fx/default.nix
index 2f63ca723426..7934e0c15312 100644
--- a/pkgs/development/python-modules/python-fx/default.nix
+++ b/pkgs/development/python-modules/python-fx/default.nix
@@ -45,6 +45,10 @@ buildPythonPackage rec {
     rm src/pyfx/model/common/jsonpath/*.py # upstream checks in generated files, remove to ensure they were regenerated
     antlr -Dlanguage=Python3 -visitor src/pyfx/model/common/jsonpath/*.g4
     rm src/pyfx/model/common/jsonpath/*.{g4,interp,tokens} # no need to install
+
+    # https://github.com/cielong/pyfx/pull/148
+    substituteInPlace src/pyfx/view/common/frame.py \
+      --replace-fail "self.__super.__init__()" "super().__init__()"
   '';
 
   pythonRelaxDeps = true;