diff --git a/Cargo.toml b/Cargo.toml
index 02b2f5b9e5..8fbe1c409e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,7 @@ clap = "*"
 hyper = "0.10"
 mime = "0.2"
 rustc-serialize = "*"
-yup-oauth2 = "*"
+yup-oauth2 = "^ 1.0"
 serde = "*"
 serde_json = "*"
 serde_derive = "*"