diff --git a/k256/Cargo.toml b/k256/Cargo.toml
index 7bed5a42..b78a06d3 100644
--- a/k256/Cargo.toml
+++ b/k256/Cargo.toml
@@ -46,7 +46,7 @@ digest = ["ecdsa-core/digest", "ecdsa-core/hazmat"]
 ecdh = ["arithmetic", "elliptic-curve/ecdh"]
 ecdsa = ["arithmetic", "digest", "ecdsa-core/sign", "ecdsa-core/verify"]
 expose-field = ["arithmetic"]
-hash2curve = ["elliptic-curve/hash2curve"]
+hash2curve = ["arithmetic", "elliptic-curve/hash2curve"]
 jwk = ["elliptic-curve/jwk"]
 keccak256 = ["digest", "sha3"]
 pem = ["elliptic-curve/pem", "ecdsa-core/pem", "pkcs8"]
diff --git a/p256/Cargo.toml b/p256/Cargo.toml
index 2054fff6..0a4c4926 100644
--- a/p256/Cargo.toml
+++ b/p256/Cargo.toml
@@ -39,7 +39,7 @@ bits = ["arithmetic", "elliptic-curve/bits"]
 digest = ["ecdsa-core/digest", "ecdsa-core/hazmat"]
 ecdh = ["arithmetic", "elliptic-curve/ecdh"]
 ecdsa = ["arithmetic", "ecdsa-core/sign", "ecdsa-core/verify", "sha256"]
-hash2curve = ["elliptic-curve/hash2curve"]
+hash2curve = ["arithmetic", "elliptic-curve/hash2curve"]
 jwk = ["elliptic-curve/jwk"]
 pem = ["elliptic-curve/pem", "ecdsa-core/pem", "pkcs8"]
 pkcs8 = ["elliptic-curve/pkcs8"]