diff --git a/bin/transformers/requirements-dev.txt b/bin/transformers/requirements-dev.txt
index 30ae8bf..8513160 100644
--- a/bin/transformers/requirements-dev.txt
+++ b/bin/transformers/requirements-dev.txt
@@ -24,7 +24,7 @@ numpy==1.17.2
 opt-einsum==3.1.0
 packaging==19.2
 pluggy==0.13.0
-protobuf==3.10.0
+protobuf==3.18.3
 py==1.8.0
 pyparsing==2.4.2
 pytest==5.2.1