diff --git a/test/environment/grpc/requirements.txt b/test/environment/grpc/requirements.txt
index fabeae4b..949005b8 100644
--- a/test/environment/grpc/requirements.txt
+++ b/test/environment/grpc/requirements.txt
@@ -1,5 +1,5 @@
-grpcio==1.65.4
-grpcio-health-checking==1.65.4
-grpcio-reflection==1.65.4
-grpcio-testing==1.65.4
-grpcio-tools==1.65.4
+grpcio==1.66.1
+grpcio-health-checking==1.66.1
+grpcio-reflection==1.66.1
+grpcio-testing==1.66.1
+grpcio-tools==1.66.1
diff --git a/test/requirements.ci.txt b/test/requirements.ci.txt
index a6c1069a..f359f65f 100644
--- a/test/requirements.ci.txt
+++ b/test/requirements.ci.txt
@@ -1,5 +1,5 @@
 docker==7.1.0
-grpcio==1.65.4
+grpcio==1.66.1
 protobuf==5.27.4
 requests==2.32.3
 urllib3==2.2.2