diff --git a/requirements.txt b/requirements.txt
index 569d870..3ccc143 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -95,7 +95,7 @@ pickleshare==0.7.5
 Pillow==6.1.0
 prometheus-client==0.4.2
 prompt-toolkit==2.0.7
-protobuf==3.9.0
+protobuf==3.18.3
 psutil==5.4.2
 ptyprocess==0.6.0
 pybind11==2.4.3