diff --git a/pyproject.toml b/pyproject.toml
index 0bd86e868..c9fbf95d0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ dependencies = [
 
 [project.optional-dependencies]
 tests = [
-    "grpcio==1.65.4",
+    "grpcio==1.65.5",
     "protobuf==3.20.3",
     "pytest==8.3.2",
     "pytest-cov==5.0.0",