diff --git a/pkgs/development/python-modules/gtfs-realtime-bindings/default.nix b/pkgs/development/python-modules/gtfs-realtime-bindings/default.nix
index 011fac611106..d28ce282cfd0 100644
--- a/pkgs/development/python-modules/gtfs-realtime-bindings/default.nix
+++ b/pkgs/development/python-modules/gtfs-realtime-bindings/default.nix
@@ -8,13 +8,13 @@
 
 buildPythonPackage rec {
   pname = "gtfs-realtime-bindings";
-  version = "2.0.0";
+  version = "2.1.0";
   pyproject = true;
 
   src = fetchPypi {
     pname = "gtfs_realtime_bindings";
     inherit version;
-    hash = "sha256-hhqdz0xA+aWVIARNhw4zawCJStVji88sSpuZiSNUO0I=";
+    hash = "sha256-FQfKOWKO6N8tOq44+e7YgdSoKqgkaTDWCLpkKNXKOlY=";
   };
 
   build-system = [ setuptools ];
diff --git a/pkgs/development/python-modules/py-nymta/default.nix b/pkgs/development/python-modules/py-nymta/default.nix
index e7c1e7de1f0e..add160580ec8 100644
--- a/pkgs/development/python-modules/py-nymta/default.nix
+++ b/pkgs/development/python-modules/py-nymta/default.nix
@@ -25,6 +25,10 @@ buildPythonPackage (finalAttrs: {
 
   build-system = [ setuptools ];
 
+  pythonRelaxDeps = [
+    "gtfs-realtime-bindings"
+  ];
+
   dependencies = [
     aiofiles
     aiohttp