lower tokio-core dep req
@@ -29,7 +29,7 @@ serde = "1.0.54"
serde_derive = "1.0.54"
serde_json = "1.0.17"
time = "0.1.40"
-tokio-core = "0.1.17"
+tokio-core = "0.1.12"
url = "1.7.0"
uuid = "0.6.3"
smallvec = { version = "0.6", features = ["serde"] }
