diff --git a/grpc/tests/timeout_test.cpp b/grpc/tests/timeout_test.cpp
index e14fd1dc8b6b..df3a41a09cc8 100644
--- a/grpc/tests/timeout_test.cpp
+++ b/grpc/tests/timeout_test.cpp
@@ -6,6 +6,7 @@
 
 #include <userver/ugrpc/tests/service_fixtures.hpp>
 
+#include <tests/deadline_helpers.hpp>
 #include <tests/unit_test_client.usrv.pb.hpp>
 #include <tests/unit_test_client_qos.hpp>
 #include <tests/unit_test_service.usrv.pb.hpp>
@@ -28,7 +29,7 @@ class UnitTestService final : public sample::ugrpc::UnitTestServiceBase {
         LOG_DEBUG() << request_counter_ << " request attempt: now=" << std::chrono::system_clock::now()
                     << ", deadline=" << context.GetServerContext().deadline();
         if (++request_counter_ % 4) {
-            engine::InterruptibleSleepFor(std::chrono::milliseconds{200});
+            engine::InterruptibleSleepFor(tests::kShortTimeout + tests::kAddSleep);
             EXPECT_TRUE(context.GetServerContext().IsCancelled());
             // this status should not reach client because of 'perAttemptRecvTimeout'
             LOG_DEBUG() << request_counter_ << ": return ABORTED";
@@ -51,7 +52,7 @@ using TimeoutTest = ugrpc::tests::ServiceFixture<UnitTestService>;
 UTEST_F(TimeoutTest, DISABLED_IN_OLD_GRPC_TEST_NAME(PerAttemptTimeout)) {
     ugrpc::client::Qos qos;
     qos.attempts = 4;
-    qos.timeout = std::chrono::milliseconds{100};
+    qos.timeout = tests::kShortTimeout;
     ugrpc::client::ClientQos client_qos;
     client_qos.SetDefault(qos);
     const auto config = std::vector<dynamic_config::KeyValue>{{tests::kUnitTestClientQos, client_qos}};