diff --git a/crates/presenter/Cargo.toml b/crates/presenter/Cargo.toml
index f6b9b26..eab59d7 100644
--- a/crates/presenter/Cargo.toml
+++ b/crates/presenter/Cargo.toml
@@ -45,6 +45,6 @@ update-test-source = ["unlucky-core/update-test-source"]
 # `manifest.json.sig`，没有它 core 一律拒装）。这里打开 core 的 `update-test-key`：它**只**把一把
 # **公开**的测试公钥并进信任表，不开任何数据源开关（与 `update-test-source` 是两件事）。
 # 只出现在 `[dev-dependencies]`：库/发布构建拿不到它。守门：`packaging/check_test_key_off.py`。
-unlucky-core = { path = "../core", features = ["update-test-key"] }
+unlucky-core = { path = "../core", version = "0.2.4", features = ["update-test-key"] }
 # 夹具用同一套种子现签清单（与 `crates/core/src/update/tests/support_sign.rs` 同源）。
 ed25519-dalek.workspace = true