diff --git a/pkgs/applications/networking/gns3/default.nix b/pkgs/applications/networking/gns3/default.nix
index b6838844afe43..8048b87409c1d 100644
--- a/pkgs/applications/networking/gns3/default.nix
+++ b/pkgs/applications/networking/gns3/default.nix
@@ -1,10 +1,12 @@
 { callPackage
 , libsForQt5
+, python311
 }:
 
 let
   mkGui = args: callPackage (import ./gui.nix (args)) {
     inherit (libsForQt5) wrapQtAppsHook;
+    python3 = python311;
   };
 
   mkServer = args: callPackage (import ./server.nix (args)) { };
diff --git a/pkgs/applications/networking/gns3/gui.nix b/pkgs/applications/networking/gns3/gui.nix
index 895df8abfbc72..dfa92a444e0fc 100644
--- a/pkgs/applications/networking/gns3/gui.nix
+++ b/pkgs/applications/networking/gns3/gui.nix
@@ -33,7 +33,8 @@ python3.pkgs.buildPythonApplication rec {
     psutil
     sentry-sdk
     setuptools
-    sip4 (pyqt5.override { withWebSockets = true; })
+    sip
+    (pyqt5.override { withWebSockets = true; })
     truststore
     qt5.qtwayland
   ] ++ lib.optionals (pythonOlder "3.9") [