diff --git a/Cargo.toml b/Cargo.toml
index b06fd16..bde51c3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,6 +12,5 @@ categories = ["cryptography", "algorithms"]
 readme = "README.md"
 
 [dependencies]
-ring = "^0.6.0"
+ring = "^0.9.3"
 rand = "^0.3.0"
-