diff --git a/setup.py b/setup.py
index 4fa7a721..096be7ea 100644
--- a/setup.py
+++ b/setup.py
@@ -51,7 +51,7 @@
         'transformers==4.22.2',
         'datasets==2.11.0',
         'pathos==0.2.8',
-        'protobuf==3.20.1',
+        'protobuf==3.20.3',
         # for sts:
         'sentence-transformers==2.2.2',
         # for alignment: