diff --git a/Cargo.toml b/Cargo.toml
index 921b8a8..616611c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,7 +24,7 @@ std = ["alloc", "secp256k1-sys/std"]
 # allow use of Secp256k1::new and related API that requires an allocator
  alloc = ["secp256k1-sys/alloc"]
  bitcoin-hashes-std = ["bitcoin_hashes/std"]
-rand-std = ["rand/std"]
+rand-std = ["rand/std", "rand/std_rng"]
 recovery = ["secp256k1-sys/recovery"]
 lowmemory = ["secp256k1-sys/lowmemory"]
 global-context = ["std"]