diff --git a/Cargo.toml b/Cargo.toml
index 51d2af7..4fa51b7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -49,6 +49,10 @@ anyhow = { version = "^1.0.68", optional = true }
 # matrix
 
 
+[dev-dependencies]
+tokio = { version =  "1.20.3", features = ["rt-multi-thread", "macros"] }
+
+
 [features]
 jpg = ["hmac", "sha2", "base64", "hex"]
 test = ["tokio"]