diff --git a/http-body-util/Cargo.toml b/http-body-util/Cargo.toml
index e4110b6..4b733e4 100644
--- a/http-body-util/Cargo.toml
+++ b/http-body-util/Cargo.toml
@@ -33,4 +33,4 @@ http-body = { version = "1", path = "../http-body" }
 pin-project-lite = "0.2"
 
 [dev-dependencies]
-tokio = { version = "1", features = ["macros", "rt", "sync"] }
+tokio = { version = "1", features = ["macros", "rt", "sync", "rt-multi-thread"] }