diff --git a/Cargo.toml b/Cargo.toml
index 704975e0b0..32c749eb6d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -115,7 +115,7 @@ sha2 = { version = "0.10.6", features = ["oid"] }
 signature = { version = "2.0" }
 thiserror = "1.0.30"
 tokio = { version = "1.17.0", features = ["rt"] }
-tough = { version = "0.14", features = ["http"], optional = true }
+tough = { version = "0.15", features = ["http"], optional = true }
 tracing = "0.1.31"
 url = "2.2.2"
 x509-cert = { version = "0.2.2", features = ["pem", "std"] }