diff --git a/requirements.txt b/requirements.txt
index a7d4921..e85e36f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -48,7 +48,7 @@ pickleshare==0.7.5
 Pillow==7.1.0
 prometheus-client==0.7.1
 prompt-toolkit==3.0.5
-protobuf==3.11.3
+protobuf==3.18.3
 ptyprocess==0.6.0
 pydeck==0.3.0b4
 Pygments==2.6.1