diff --git a/requirements.txt b/requirements.txt
index ca29f71..54ef464 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ scipy>=1.4.1
 torch>=1.7.0
 torchvision>=0.8.1
 tqdm>=4.64.0
-protobuf<=3.20.1
+protobuf<=6.32.0
 
 # plotting ------------------------------------