diff --git a/src/requirements.txt b/src/requirements.txt
index e3df0e9..218fe31 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -67,7 +67,7 @@ pickleshare==0.7.5
 Pillow==7.2.0
 prometheus-client==0.8.0
 prompt-toolkit==3.0.5
-protobuf==3.12.4
+protobuf==3.18.3
 psutil==5.7.2
 ptyprocess==0.6.0
 pyarrow==1.0.0