diff --git a/tools/harness-simulation/harness/requirements.txt b/tools/harness-simulation/harness/requirements.txt
index 73fba9206..df58b42e3 100644
--- a/tools/harness-simulation/harness/requirements.txt
+++ b/tools/harness-simulation/harness/requirements.txt
@@ -1,3 +1,3 @@
-grpcio==1.53.0
+grpcio==1.53.2
 grpcio-tools==1.20.1
 PyYAML==5.4.1