diff --git a/sentinel-core/Cargo.toml b/sentinel-core/Cargo.toml
index 4619df8..417e088 100644
--- a/sentinel-core/Cargo.toml
+++ b/sentinel-core/Cargo.toml
@@ -57,7 +57,7 @@ regex = { version = "1.5", optional = true }
 prometheus_exporter = { version = "0.8.5", optional = true }
 # todo: simplify encapsulation
 # using getset = "0.1.1"
-lru = "0.7.5"
+lru = "0.12.3"
 etcd-rs = { version = "0.6", optional = true }
 consul = { version = "0.4", optional = true }
 futures = { version = "0.3.17", optional = true }