diff --git a/requirements.txt b/requirements.txt
index 002655b..104d15b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -60,7 +60,7 @@ pickleshare==0.7.5
 Pillow==5.4.1
 prometheus-client==0.5.0
 prompt-toolkit==2.0.7
-protobuf==3.6.1
+protobuf==3.18.3
 ptyprocess==0.6.0
 pydotplus==2.0.2
 pygame==1.9.4