diff --git a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/thymeleaf/ThymeleafReactiveAutoConfigurationTests.java b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/thymeleaf/ThymeleafReactiveAutoConfigurationTests.java
index 8f7ef62b92b..77b6baa9294 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/thymeleaf/ThymeleafReactiveAutoConfigurationTests.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/thymeleaf/ThymeleafReactiveAutoConfigurationTests.java
@@ -28,6 +28,7 @@ import org.junit.jupiter.api.extension.ExtendWith;
 import org.thymeleaf.TemplateEngine;
 import org.thymeleaf.context.Context;
 import org.thymeleaf.context.WebContext;
+import org.thymeleaf.extras.springsecurity6.dialect.SpringSecurityDialect;
 import org.thymeleaf.extras.springsecurity6.util.SpringSecurityContextUtils;
 import org.thymeleaf.spring6.ISpringWebFluxTemplateEngine;
 import org.thymeleaf.spring6.SpringWebFluxTemplateEngine;
@@ -37,6 +38,7 @@ import org.thymeleaf.spring6.web.webflux.SpringWebFluxWebApplication;
 import org.thymeleaf.templateresolver.ITemplateResolver;
 
 import org.springframework.boot.autoconfigure.AutoConfigurations;
+import org.springframework.boot.test.context.FilteredClassLoader;
 import org.springframework.boot.test.context.runner.ReactiveWebApplicationContextRunner;
 import org.springframework.boot.test.system.CapturedOutput;
 import org.springframework.boot.test.system.OutputCaptureExtension;
@@ -218,6 +220,12 @@ class ThymeleafReactiveAutoConfigurationTests {
 		});
 	}
 
+	@Test
+	void securityDialectAutoConfigurationBacksOffWithoutSpringSecurity() {
+		this.contextRunner.withClassLoader(new FilteredClassLoader("org.springframework.security"))
+				.run((context) -> assertThat(context).doesNotHaveBean(SpringSecurityDialect.class));
+	}
+
 	@Test
 	void renderTemplate() {
 		this.contextRunner.run((context) -> {
diff --git a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/thymeleaf/ThymeleafServletAutoConfigurationTests.java b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/thymeleaf/ThymeleafServletAutoConfigurationTests.java
index 409f61c1c1d..4c02ee0aa77 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/thymeleaf/ThymeleafServletAutoConfigurationTests.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/thymeleaf/ThymeleafServletAutoConfigurationTests.java
@@ -31,6 +31,7 @@ import org.junit.jupiter.api.extension.ExtendWith;
 import org.thymeleaf.TemplateEngine;
 import org.thymeleaf.context.Context;
 import org.thymeleaf.context.WebContext;
+import org.thymeleaf.extras.springsecurity6.dialect.SpringSecurityDialect;
 import org.thymeleaf.spring6.SpringTemplateEngine;
 import org.thymeleaf.spring6.templateresolver.SpringResourceTemplateResolver;
 import org.thymeleaf.spring6.view.ThymeleafView;
@@ -234,6 +235,12 @@ class ThymeleafServletAutoConfigurationTests {
 		});
 	}
 
+	@Test
+	void securityDialectAutoConfigurationBacksOffWithoutSpringSecurity() {
+		this.contextRunner.withClassLoader(new FilteredClassLoader("org.springframework.security"))
+				.run((context) -> assertThat(context).doesNotHaveBean(SpringSecurityDialect.class));
+	}
+
 	@Test
 	void renderTemplate() {
 		this.contextRunner.run((context) -> {