diff --git a/core/Cargo.toml b/core/Cargo.toml
index be620cd..3ad5fde 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -43,5 +43,5 @@ features = [
 ]
 
 [dev-dependencies]
-tokio = "^1.21"
+tokio = { version = "^1.21", features = ["macros"] }
 async-tempfile = "^0.2"
\ No newline at end of file