diff --git a/Cargo.toml b/Cargo.toml
index b566867d..299bdd05 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -25,7 +25,7 @@ phf_codegen = "0.7"
 
 [dependencies]
 phf = "0.7"
-openssl = "0.5"
+openssl = "0.6"
 log = "0.3"
 rustc-serialize = "0.3"
 byteorder = "0.3"