diff --git a/Cargo.toml b/Cargo.toml
index 80d0b05c1..50b35fb42 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,7 @@ homepage = "https://github.com/ebfull/pairing"
 repository = "https://github.com/ebfull/pairing"
 
 [dependencies]
-rand = "0.3"
+rand = "0.4"
 byteorder = "1"
 clippy = { version = "0.0.174", optional = true }