diff --git a/pytorch_lightning/utilities/parsing.py b/pytorch_lightning/utilities/parsing.py
index 8c43fd21d1..78131e2eec 100644
--- a/pytorch_lightning/utilities/parsing.py
+++ b/pytorch_lightning/utilities/parsing.py
@@ -87,7 +87,7 @@ def is_picklable(obj: object) -> bool:
     try:
         pickle.dumps(obj)
         return True
-    except (pickle.PickleError, AttributeError):
+    except (pickle.PickleError, AttributeError, RuntimeError):
         return False