diff --git a/core/src/main/java/org/springframework/security/authorization/method/PostAuthorizeAuthorizationManager.java b/core/src/main/java/org/springframework/security/authorization/method/PostAuthorizeAuthorizationManager.java
index da28c777ea..fc34bb514a 100644
--- a/core/src/main/java/org/springframework/security/authorization/method/PostAuthorizeAuthorizationManager.java
+++ b/core/src/main/java/org/springframework/security/authorization/method/PostAuthorizeAuthorizationManager.java
@@ -92,7 +92,7 @@ public AuthorizationResult authorize(Supplier<Authentication> authentication, Me
 		MethodSecurityExpressionHandler expressionHandler = this.registry.getExpressionHandler();
 		EvaluationContext ctx = expressionHandler.createEvaluationContext(authentication, mi.getMethodInvocation());
 		expressionHandler.setReturnObject(mi.getResult(), ctx);
-		return (AuthorizationDecision) ExpressionUtils.evaluate(attribute.getExpression(), ctx);
+		return ExpressionUtils.evaluate(attribute.getExpression(), ctx);
 	}
 
 	@Override
diff --git a/core/src/main/java/org/springframework/security/authorization/method/PreAuthorizeAuthorizationManager.java b/core/src/main/java/org/springframework/security/authorization/method/PreAuthorizeAuthorizationManager.java
index e1c9a6ed95..fcf26e1d56 100644
--- a/core/src/main/java/org/springframework/security/authorization/method/PreAuthorizeAuthorizationManager.java
+++ b/core/src/main/java/org/springframework/security/authorization/method/PreAuthorizeAuthorizationManager.java
@@ -82,7 +82,7 @@ public AuthorizationResult authorize(Supplier<Authentication> authentication, Me
 			return null;
 		}
 		EvaluationContext ctx = this.registry.getExpressionHandler().createEvaluationContext(authentication, mi);
-		return (AuthorizationDecision) ExpressionUtils.evaluate(attribute.getExpression(), ctx);
+		return ExpressionUtils.evaluate(attribute.getExpression(), ctx);
 	}
 
 	@Override