diff --git a/Cargo.toml b/Cargo.toml
index 794cd3f5..1def9ded 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,7 +21,7 @@ csv = "1.0.2"
 rustc-serialize = "0.3"
 newtype_derive = "0.1"
 custom_derive = "0.1"
-rand = "0.7.3"
+rand = "0.8.5"
 rand_core = "0.5.1"
 serde = "1.0"
 serde_derive = "1.0"