diff --git a/test/core/config/core_configuration_test.cc b/test/core/config/core_configuration_test.cc
index 9a3f2bd2e3a..3e7542023f9 100644
--- a/test/core/config/core_configuration_test.cc
+++ b/test/core/config/core_configuration_test.cc
@@ -53,8 +53,8 @@ TEST(ConfigTest, ThreadedInit) {
     std::this_thread::sleep_for(std::chrono::seconds(1));
   };
   std::vector<std::thread> threads;
-  threads.reserve(64);
-  for (int i = 0; i < 64; i++) {
+  threads.reserve(10);
+  for (int i = 0; i < 10; i++) {
     threads.push_back(std::thread([]() { CoreConfiguration::Get(); }));
   }
   for (auto& t : threads) {