diff --git a/tests/unit/util/requests/WsConnectionTests.cpp b/tests/unit/util/requests/WsConnectionTests.cpp
index d0856b88..7c1a37eb 100644
--- a/tests/unit/util/requests/WsConnectionTests.cpp
+++ b/tests/unit/util/requests/WsConnectionTests.cpp
@@ -170,9 +170,12 @@ TEST_F(WsConnectionTests, WriteTimeout)
 
         // Write is success even if the other side is not reading.
         // It seems we need to fill some socket buffer before the timeout occurs.
-        while (not error.has_value()) {
-            error = connection->write("hello", yield, std::chrono::milliseconds{1});
+        size_t counter = 0;
+        while (not error.has_value() and counter < 100) {
+            error = connection->write(std::string(100'000, 'a'), yield, std::chrono::milliseconds{1});
+            ++counter;
         }
+        EXPECT_LT(counter, 100);
         ASSERT_TRUE(error.has_value());
         EXPECT_EQ(error->errorCode().value().value(), asio::error::timed_out);
     });