diff --git a/postgres-protocol/Cargo.toml b/postgres-protocol/Cargo.toml
index 5c7e1147..3ac6acfb 100644
--- a/postgres-protocol/Cargo.toml
+++ b/postgres-protocol/Cargo.toml
@@ -16,6 +16,6 @@ fallible-iterator = "0.2"
 hmac = "0.10"
 md5 = "0.7"
 memchr = "2.0"
-rand = "0.7"
+rand = "0.8"
 sha2 = "0.9"
 stringprep = "0.1"
diff --git a/postgres-protocol/src/authentication/sasl.rs b/postgres-protocol/src/authentication/sasl.rs
index 416b4b99..d9547113 100644
--- a/postgres-protocol/src/authentication/sasl.rs
+++ b/postgres-protocol/src/authentication/sasl.rs
@@ -135,7 +135,7 @@ impl ScramSha256 {
         let mut rng = rand::thread_rng();
         let nonce = (0..NONCE_LENGTH)
             .map(|_| {
-                let mut v = rng.gen_range(0x21u8, 0x7e);
+                let mut v = rng.gen_range(0x21u8..0x7e);
                 if v == 0x2c {
                     v = 0x7e
                 }