1 files changed, 16 insertions, 1 deletions
diff --git a/pkgs/applications/networking/gns3/server.nix b/pkgs/applications/networking/gns3/server.nix
index ab3a6db587c..818c01a89ab 100644
--- a/pkgs/applications/networking/gns3/server.nix
+++ b/pkgs/applications/networking/gns3/server.nix
@@ -17,13 +17,28 @@ let
         };
         doCheck = false;
       });
+
+      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;
+      });
+
     })
   ];
 
   python = python3.override {
     packageOverrides = lib.foldr lib.composeExtensions (self: super: { }) ([ packageOverrides ] ++ defaultOverrides);
   };
-in python.pkgs.buildPythonPackage {
+in python.pkgs.buildPythonApplication {
   pname = "gns3-server";
   inherit version;