diff --git a/Cargo.toml b/Cargo.toml
index dbf4a28..44b2997 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -41,7 +41,7 @@ harness = false
 # match exactly, since the build.rs uses the crate itself as a library.
 
 [dependencies]
-rand = { version = "0.5", default-features = false }
+rand = { version = "0.6.0", default-features = false }
 byteorder = { version = "^1.2.3", default-features = false, features = ["i128"] }
 digest = { version = "0.8", default-features = false }
 clear_on_drop = "=0.2.3"
@@ -50,7 +50,7 @@ serde = { version = "1.0", optional = true }
 packed_simd = { version = "0.3.0", features = ["into_bits"], optional = true }
 
 [build-dependencies]
-rand = { version = "0.5", default-features = false }
+rand = { version = "0.6.0", default-features = false }
 byteorder = { version = "^1.2.3", default-features = false, features = ["i128"] }
 digest = { version = "0.8", default-features = false }
 clear_on_drop = "=0.2.3"