diff --git a/Cargo.toml b/Cargo.toml
index 7e7c056..771c253 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,4 +35,4 @@ hyper-tls = "0.3"
 log = "0.4"
 pretty_env_logger = "0.4"
 serde_json = "1.0"
-tokio = "0.1.7"
+tokio = "0.3.7"
diff --git a/holding/Cargo.toml b/holding/Cargo.toml
index 25b2300..39ba92e 100644
--- a/holding/Cargo.toml
+++ b/holding/Cargo.toml
@@ -24,7 +24,7 @@ serde_json = "1.0"
 serde_yaml = "0.8"
 serde_urlencoded = "0.7"
 futures = "0.1.21"
-tokio = "0.1.7"
+tokio = "0.3.7"
 tokio-core = "0.1.18"
 failure = "0.1.8"
 base64 = "0.9"