diff --git a/requirements.txt b/requirements.txt
index 2ecd19f..d4757d0 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,6 +14,7 @@ tqdm>=4.41.0
 
 # Logging -------------------------------------
 tensorboard>=2.4.1
+protobuf<=3.20.1
 # wandb
 
 # Plotting ------------------------------------