diff --git a/core/src/main/java/org/springframework/security/access/expression/method/PostInvocationExpressionAttribute.java b/core/src/main/java/org/springframework/security/access/expression/method/PostInvocationExpressionAttribute.java
index 3dc86cc5a1..8642484a41 100644
--- a/core/src/main/java/org/springframework/security/access/expression/method/PostInvocationExpressionAttribute.java
+++ b/core/src/main/java/org/springframework/security/access/expression/method/PostInvocationExpressionAttribute.java
@@ -28,6 +28,7 @@ import org.springframework.security.access.prepost.PostInvocationAttribute;
  * instead
  */
 @Deprecated
+@SuppressWarnings("serial")
 class PostInvocationExpressionAttribute extends AbstractExpressionBasedMethodConfigAttribute
 		implements PostInvocationAttribute {
 
diff --git a/core/src/main/java/org/springframework/security/access/expression/method/PreInvocationExpressionAttribute.java b/core/src/main/java/org/springframework/security/access/expression/method/PreInvocationExpressionAttribute.java
index 26af51a6f1..41ec280bc7 100644
--- a/core/src/main/java/org/springframework/security/access/expression/method/PreInvocationExpressionAttribute.java
+++ b/core/src/main/java/org/springframework/security/access/expression/method/PreInvocationExpressionAttribute.java
@@ -28,6 +28,7 @@ import org.springframework.security.access.prepost.PreInvocationAttribute;
  * instead
  */
 @Deprecated
+@SuppressWarnings("serial")
 class PreInvocationExpressionAttribute extends AbstractExpressionBasedMethodConfigAttribute
 		implements PreInvocationAttribute {
 
diff --git a/core/src/main/java/org/springframework/security/access/intercept/aopalliance/MethodSecurityMetadataSourceAdvisor.java b/core/src/main/java/org/springframework/security/access/intercept/aopalliance/MethodSecurityMetadataSourceAdvisor.java
index 4bc3d19b5b..58174d9d1a 100644
--- a/core/src/main/java/org/springframework/security/access/intercept/aopalliance/MethodSecurityMetadataSourceAdvisor.java
+++ b/core/src/main/java/org/springframework/security/access/intercept/aopalliance/MethodSecurityMetadataSourceAdvisor.java
@@ -54,6 +54,7 @@ import org.springframework.util.CollectionUtils;
  * @deprecated Use {@link EnableMethodSecurity} or publish interceptors directly
  */
 @Deprecated
+@SuppressWarnings("serial")
 public class MethodSecurityMetadataSourceAdvisor extends AbstractPointcutAdvisor implements BeanFactoryAware {
 
 	private transient MethodSecurityMetadataSource attributeSource;