diff --git a/Cargo.toml b/Cargo.toml
index a9a0bb9..6076d29 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,7 +26,7 @@ zeroize = "1.1.0"
 
 [dev-dependencies]
 bincode = "1.2.1"
-proptest = "0.10"
+proptest = "1.0"
 proptest-derive = "0.3.0"
 
 [features]