diff --git a/requirements.txt b/requirements.txt
index e20fd05..1b5b459 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 googleapis-common-protos==1.54.0
 grpcio==1.42.0
-protobuf==3.19.1
+protobuf==3.19.3
 six==1.16.0
 yachalk==0.1.5
\ No newline at end of file