diff --git a/requirements.txt b/requirements.txt
index f6af95b..41ec729 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ numpy==1.16.4
 Pillow==6.2.0
 pkg-resources==0.0.0
 progressbar2==3.39.3
-protobuf==3.8.0
+protobuf==3.18.3
 pyparsing==2.4.0
 python-dateutil==2.8.0
 python-utils==2.3.0