diff --git a/requirements.txt b/requirements.txt
index 8288319..afa70d9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -68,7 +68,7 @@ pluggy==0.8.0
 progressbar2==3.38.0
 prometheus-client==0.4.2
 prompt-toolkit==2.0.7
-protobuf==3.6.1
+protobuf==3.18.3
 ptyprocess==0.6.0
 py==1.7.0
 pycparser==2.19