diff --git a/Cargo.toml b/Cargo.toml
index 63251c618cd..0d53bf13a8b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,7 +24,7 @@ max_level_debug = []
 [dependencies]
 bitcoin = "0.18"
 bitcoin_hashes = "0.3"
-rand = "0.4"
+rand = "0.7"
 secp256k1 = "0.12"
 
 [dev-dependencies.bitcoin]
diff --git a/src/util/rng.rs b/src/util/rng.rs
index 63fbc99b52a..f3e9c984bcf 100644
--- a/src/util/rng.rs
+++ b/src/util/rng.rs
@@ -1,15 +1,13 @@
 #[cfg(not(feature = "fuzztarget"))]
 mod real_rng {
-	use rand::{thread_rng,Rng};
+	use rand::{Rng, rngs::OsRng};
 
 	pub fn fill_bytes(data: &mut [u8]) {
-		let mut rng = thread_rng();
-		rng.fill_bytes(data);
+		OsRng.fill(data);
 	}
 
 	pub fn rand_f32() -> f32 {
-		let mut rng = thread_rng();
-		rng.next_f32()
+		OsRng.gen()
 	}
 }
 #[cfg(not(feature = "fuzztarget"))]