diff --git a/lambda-runtime/Cargo.toml b/lambda-runtime/Cargo.toml
index b4876663..99a72f5c 100644
--- a/lambda-runtime/Cargo.toml
+++ b/lambda-runtime/Cargo.toml
@@ -60,7 +60,7 @@ tower = { workspace = true, features = ["util"] }
 tracing = { version = "0.1", features = ["log"] }
 
 [dev-dependencies]
-httpmock = "0.8.1"
+httpmock = "0.9.0"
 hyper-util = { workspace = true, features = [
     "client",
     "client-legacy",