diff --git a/core/src/main/java/org/springframework/security/authorization/AuthorizationManager.java b/core/src/main/java/org/springframework/security/authorization/AuthorizationManager.java
index 20bb9b99c7..de7523e614 100644
--- a/core/src/main/java/org/springframework/security/authorization/AuthorizationManager.java
+++ b/core/src/main/java/org/springframework/security/authorization/AuthorizationManager.java
@@ -31,7 +31,7 @@ import org.springframework.security.core.Authentication;
  * @author Evgeniy Cheban
  */
 @FunctionalInterface
-public interface AuthorizationManager<@Nullable T> {
+public interface AuthorizationManager<T extends @Nullable Object> {
 
 	/**
 	 * Determines if access should be granted for a specific authentication and object.