diff --git a/bots/hermes/requirements.txt b/bots/hermes/requirements.txt
index 36c5cc39..6d86f9d2 100644
--- a/bots/hermes/requirements.txt
+++ b/bots/hermes/requirements.txt
@@ -11,7 +11,7 @@ google-auth==2.3.3
 google-cloud-core==2.2.1
 google-cloud-datastore==2.1.6
 googleapis-common-protos==1.54.0
-grpcio==1.43.0
+grpcio==1.66.2
 grpcio-status==1.43.0
 idna==3.3
 iniconfig==1.1.1