diff --git a/Sources/Puredux/Store/Core/AnyStoreObject.swift b/Sources/Puredux/Store/Core/AnyStoreObject.swift
index d51d9b7..7e5e778 100644
--- a/Sources/Puredux/Store/Core/AnyStoreObject.swift
+++ b/Sources/Puredux/Store/Core/AnyStoreObject.swift
@@ -66,7 +66,7 @@ extension AnyStoreObject {
 }
 
 private extension AnyStoreObject {
-    final class Box<StoreObject: StoreObjectProtocol>: BaseBox
+    final class Box<StoreObject: StoreObjectProtocol>: BaseBox, @unchecked Sendable
     where
     StoreObject.State == State,
     StoreObject.Action == Action {