diff --git a/requirements.txt b/requirements.txt
index 8681eb9..2bd07f1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -50,7 +50,7 @@ pickleshare==0.7.5
 pkg-resources==0.0.0
 plotly==3.8.1
 prompt-toolkit==2.0.9
-protobuf==3.7.1
+protobuf==3.18.3
 ptyprocess==0.6.0
 Pygments==2.3.1
 pyparsing==2.4.0