diff --git a/requirements.txt b/requirements.txt
index 4fdd93d..77000bf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,7 +33,7 @@ pandas==1.1.1
 Pillow==8.1.1
 pluggy==0.13.0
 plumbum==1.6.7
-protobuf==3.9.1
+protobuf==3.18.3
 py>=1.10.0
 Pygments>=2.7.4
 pyparsing==2.4.2