diff --git a/Cargo.toml b/Cargo.toml
index 433d823..d60b603 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,7 +30,7 @@ criterion = "0.3"
 futures-executor = "0.3.4"
 hex = "0.4"
 rand = "0.7"
-quickcheck = "0.9"
+quickcheck = "1.0"
 
 [[bench]]
 name = "benchmark"