diff --git a/Cargo.toml b/Cargo.toml
index 78d513e..25458e1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -46,7 +46,7 @@ quickcheck = "0.9"
 rollsum = "0.3"
 criterion = "0.3"
 rand_pcg = "0.2.1"
-proptest = "0.10.0"
+proptest = "1.0.0"
 
 [[bench]]
 name = "compare"