diff --git a/packages/reffuse/src/ReffuseContext.tsx b/packages/reffuse/src/ReffuseContext.tsx
index e00f014..0115a47 100644
--- a/packages/reffuse/src/ReffuseContext.tsx
+++ b/packages/reffuse/src/ReffuseContext.tsx
@@ -69,7 +69,7 @@ export function useMergeAllLayers<T extends Array<unknown>>(
 
     return React.useMemo(() => Layer.mergeAll(
         ...Array.map(values, context => Layer.effectContext(Effect.succeed(context)))
-    ) as Layer.Layer<any>, values)
+    ), values)
 }
 
 // declare const context1: ReffuseContext<never>