diff --git a/ecdsa/Cargo.toml b/ecdsa/Cargo.toml
index 2b28d907..22146c07 100644
--- a/ecdsa/Cargo.toml
+++ b/ecdsa/Cargo.toml
@@ -36,7 +36,7 @@ sha2 = { version = "=0.11.0-pre.5", default-features = false }
 [features]
 default = ["digest"]
 alloc = ["elliptic-curve/alloc", "signature/alloc", "spki/alloc"]
-std = ["alloc", "elliptic-curve/std", "signature/std"]
+std = ["alloc", "elliptic-curve/std"]
 
 arithmetic = ["elliptic-curve/arithmetic"]
 dev = ["arithmetic", "digest", "elliptic-curve/dev", "hazmat"]
diff --git a/ed25519/Cargo.toml b/ed25519/Cargo.toml
index 22fbff5e..789d97a7 100644
--- a/ed25519/Cargo.toml
+++ b/ed25519/Cargo.toml
@@ -39,7 +39,7 @@ default = ["std"]
 alloc = ["pkcs8?/alloc"]
 pem = ["alloc", "pkcs8/pem"]
 serde_bytes = ["serde", "dep:serde_bytes"]
-std = ["pkcs8?/std", "signature/std"]
+std = ["pkcs8?/std"]
 
 [package.metadata.docs.rs]
 all-features = true
diff --git a/ed448/Cargo.toml b/ed448/Cargo.toml
index eded8ffd..43d3bfce 100644
--- a/ed448/Cargo.toml
+++ b/ed448/Cargo.toml
@@ -36,4 +36,4 @@ default = ["std"]
 alloc = ["pkcs8?/alloc"]
 pem = ["alloc", "pkcs8/pem"]
 serde_bytes = ["serde", "dep:serde_bytes"]
-std = ["signature/std"]
+std = ["pkcs8?/std"]