diff --git a/index.js b/index.js
index ad49270..0423d8d 100644
--- a/index.js
+++ b/index.js
@@ -28,6 +28,8 @@ module.exports = (fn, opts) => {
 
 			if (typeof opts.maxAge !== 'number' || Date.now() < c.maxAge) {
 				return c.data;
+			} else {
+				cache.delete(key);
 			}
 		}