diff --git a/models/matching_module.py b/models/matching_module.py
index a25e8df..985f777 100644
--- a/models/matching_module.py
+++ b/models/matching_module.py
@@ -131,7 +131,7 @@ def on_validation_epoch_end(self):
         gc.collect()
 
     def configure_optimizers(self):
-        optimizer = torch.optim.Adam(self.superglue.parameters(), lr=self.config['lr'])
+        optimizer = torch.optim.Adam(filter(lambda p: p.requires_grad, self.superglue.parameters()), lr=self.config['lr'])
         scheduler = torch.optim.lr_scheduler.StepLR(
             optimizer=optimizer,
             step_size=1,