gns3-gui: fix build

1 files changed, 15 insertions, 1 deletions

diff --git a/pkgs/applications/networking/gns3/gui.nix b/pkgs/applications/networking/gns3/gui.nix
index 7aebfba1b49b..95ec995cbfd5 100644
--- a/pkgs/applications/networking/gns3/gui.nix
+++ b/pkgs/applications/networking/gns3/gui.nix
@@ -7,7 +7,21 @@ let
   ];
 
   python = python3.override {
-    packageOverrides = lib.foldr lib.composeExtensions (self: super: { }) defaultOverrides;
+    packageOverrides = lib.foldr lib.composeExtensions (self: super: {
+      jsonschema = super.jsonschema.overridePythonAttrs (oldAttrs: rec {
+        version = "3.2.0";
+
+        src = super.fetchPypi {
+          inherit (oldAttrs) pname;
+          inherit version;
+          sha256 = "sha256-yKhbKNN3zHc35G4tnytPRO48Dh3qxr9G3e/HGH0weXo=";
+        };
+
+        SETUPTOOLS_SCM_PRETEND_VERSION = version;
+
+        doCheck = false;
+      });
+    }) defaultOverrides;
   };
 in python.pkgs.buildPythonPackage rec {
   pname = "gns3-gui";