diff --git a/requirements.txt b/requirements.txt
index f23fe3e..c97f3ac 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ filelock==3.0.12
 joblib==0.17.0
 numpy==1.19.3
 packaging==20.4
-protobuf==3.14.0
+protobuf==3.15.0
 pyparsing==2.4.7
 regex==2020.11.13
 sacremoses==0.0.43