diff --git a/Cargo.toml b/Cargo.toml
index 6e467bf..e815546 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,11 +22,11 @@ version = "2.1"
 default-features = false
 
 [dev-dependencies.rand_core]
-version = "0.4"
+version = "0.5"
 default-features = false
 
 [dev-dependencies.rand_xorshift]
-version = "0.1"
+version = "0.2"
 default-features = false
 
 [features]