diff --git a/butane/Cargo.toml b/butane/Cargo.toml
index 6487f64..4184a54 100644
--- a/butane/Cargo.toml
+++ b/butane/Cargo.toml
@@ -36,6 +36,7 @@ r2d2 = { optional = true, workspace = true }
 deadpool = { optional = true, workspace = true }

 [dev-dependencies]
+butane = { workspace = true, features = ["async"] }
 butane_test_helper = { workspace = true }
 butane_test_macros = { workspace = true }
 cfg-if = { workspace = true }