diff --git a/Cargo.toml b/Cargo.toml
index 2db342b..fdafd31 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -28,7 +28,7 @@ version = "0.1.1"
 
 [dev-dependencies]
 docopt = "1.0.1"
-quickcheck = { version = "0.7", default-features = false }
+quickcheck = { version = "0.8", default-features = false }
 rand = "0.5"
 serde = "1"
 serde_derive = "1"