diff --git a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-session-webflux/src/test/java/smoketest/session/SampleSessionWebFluxApplicationTests.java b/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-session-webflux/src/test/java/smoketest/session/SampleSessionWebFluxApplicationTests.java
index abdcc6d06b..280a76a2a3 100644
--- a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-session-webflux/src/test/java/smoketest/session/SampleSessionWebFluxApplicationTests.java
+++ b/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-session-webflux/src/test/java/smoketest/session/SampleSessionWebFluxApplicationTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -36,7 +36,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  *
  * @author Vedran Pavic
  */
-@SpringBootTest(properties = "server.servlet.session.timeout:2",
+@SpringBootTest(properties = "server.servlet.session.timeout:5",
 		webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
 class SampleSessionWebFluxApplicationTests {
 
@@ -57,7 +57,7 @@ class SampleSessionWebFluxApplicationTests {
 		response = webClient.get().cookie("SESSION", sessionCookie.getValue()).exchange().block(Duration.ofSeconds(30));
 		assertThat(response.statusCode()).isEqualTo(HttpStatus.OK);
 		assertThat(response.bodyToMono(String.class).block(Duration.ofSeconds(30))).isEqualTo(sessionId);
-		Thread.sleep(2000);
+		Thread.sleep(5000);
 		response = webClient.get().cookie("SESSION", sessionCookie.getValue()).exchange().block(Duration.ofSeconds(30));
 		assertThat(response.statusCode()).isEqualTo(HttpStatus.UNAUTHORIZED);
 	}