diff --git a/Cargo.toml b/Cargo.toml
index 039e338e7..583e2d9f5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,7 +23,7 @@ ryu = "1.0"
 
 [dev-dependencies]
 automod = "0.1"
-rustversion = "0.1"
+rustversion = "1.0"
 serde_bytes = "0.11"
 serde_derive = "1.0"
 serde_stacker = "0.1"