diff --git a/requirements.txt b/requirements.txt
index 7e8084d492..a5239ae59d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -151,7 +151,7 @@ googleapis-common-protos==1.63.2
     #   grpcio-status
 graphviz==0.20.3
     # via -r requirements.in
-grpcio==1.65.5
+grpcio==1.66.1
     # via
     #   google-api-core
     #   grpcio-status