diff --git a/Pipfile b/Pipfile
index b122e3e..795e376 100644
--- a/Pipfile
+++ b/Pipfile
@@ -101,7 +101,7 @@ ply = "==3.11"
 prometheus-client = "==0.12.0"
 promise = "==2.3"
 prompt-toolkit = "==3.0.24"
-protobuf = "==3.19.1"
+protobuf = "==3.19.5"
 ptyprocess = "==0.7.0"
 py-zipkin = "==0.20.2"
 pyarrow = "==6.0.1"