diff --git a/Cargo.toml b/Cargo.toml
index ec3922c..9820127 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,7 +22,7 @@ bytes = "0.4.8"
 httparse = "1.3.1"
 input_buffer = "0.2.0"
 log = "0.4.2"
-rand = "0.5.2"
+rand = "0.6.4"
 sha-1 = "0.8"
 url = "1.7.0"
 utf-8 = "0.7.2"