diff --git a/package.json b/package.json
index 450137f..6e4fa64 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "@ztimson/utils",
-	"version": "0.24.9",
+	"version": "0.24.10",
 	"description": "Utility library",
 	"author": "Zak Timson",
 	"license": "MIT",
diff --git a/src/cache.ts b/src/cache.ts
index 9dc2d73..9718667 100644
--- a/src/cache.ts
+++ b/src/cache.ts
@@ -11,7 +11,7 @@ export type CacheOptions = {
 	expiryPolicy?: 'delete' | 'keep';
 }
 
-export type CachedValue<T> = T | {_expired?: boolean};
+export type CachedValue<T> = T & {_expired?: boolean};
 
 /**
  * Map of data which tracks whether it is a complete collection & offers optional expiry of cached values