diff --git a/crates/irtt-proto/Cargo.toml b/crates/irtt-proto/Cargo.toml
index 136a7ab..8c0d22f 100644
--- a/crates/irtt-proto/Cargo.toml
+++ b/crates/irtt-proto/Cargo.toml
@@ -14,5 +14,5 @@ categories = ["network-programming"]
 [dependencies]
 hmac = "0.13"
 md-5 = "0.11"
-subtle = "2"
+subtle = "2.6.1"
 thiserror = "2"