diff --git a/requirements.txt b/requirements.txt
index 4b99c7a97..7783b23a8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 # --------- pytorch --------- #
 torch>=1.10.0
 torchvision>=0.11.0
-pytorch-lightning==1.8.3
+pytorch-lightning==1.9.1
 torchmetrics==0.11.0
 
 # --------- hydra --------- #