diff --git a/Cargo.toml b/Cargo.toml
index b86ac3d..fb6e777 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,4 +15,4 @@ rational, and complex types.
 
 [dependencies]
 rustc-serialize = "0.3.13"
-rand = "0.3.3"
+rand = "0.3.8"