diff --git a/examples/NLU/examples/legacy/pytorch-lightning/requirements.txt b/examples/NLU/examples/legacy/pytorch-lightning/requirements.txt
index 7a303019..b6d39019 100644
--- a/examples/NLU/examples/legacy/pytorch-lightning/requirements.txt
+++ b/examples/NLU/examples/legacy/pytorch-lightning/requirements.txt
@@ -5,7 +5,7 @@ psutil
 sacrebleu
 rouge-score
 tensorflow_datasets
-pytorch-lightning==1.0.4
+pytorch-lightning==1.6.0
 matplotlib
 git-python==1.0.3
 faiss-cpu