diff --git a/zcash_history/Cargo.toml b/zcash_history/Cargo.toml
index 8f254e28e..d25a1347c 100644
--- a/zcash_history/Cargo.toml
+++ b/zcash_history/Cargo.toml
@@ -9,7 +9,7 @@ description = "Library for Zcash blockchain history tools"
 
 [dev-dependencies]
 assert_matches = "1.3.0"
-quickcheck = "0.8"
+quickcheck = "0.9"
 
 [dependencies]
 bigint = "4"