diff --git a/elliptic-curve/Cargo.lock b/elliptic-curve/Cargo.lock
index 8cf4ebe3a..33bca6c28 100644
--- a/elliptic-curve/Cargo.lock
+++ b/elliptic-curve/Cargo.lock
@@ -14,6 +14,11 @@ version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8c3c1a368f70d6cf7302d78f8f7093da241fb8e8807c05cc9e51a125895a6d5b"
 
+[[package]]
+name = "base64ct"
+version = "1.6.0"
+source = "git+https://github.com/RustCrypto/formats.git#fd069a6ff7a9f5abfd3d797b51f50ca0a5307e44"
+
 [[package]]
 name = "bitvec"
 version = "1.0.1"
@@ -80,12 +85,11 @@ dependencies = [
 
 [[package]]
 name = "der"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc302fd9b18d66834a6f092d10ea85489c0ca8ad6b7304092135fab171d853cd"
+version = "0.7.1"
+source = "git+https://github.com/RustCrypto/formats.git#fd069a6ff7a9f5abfd3d797b51f50ca0a5307e44"
 dependencies = [
  "const-oid",
- "pem-rfc7468",
+ "pem-rfc7468 0.7.0 (git+https://github.com/RustCrypto/formats.git)",
  "zeroize",
 ]
 
@@ -105,7 +109,7 @@ name = "elliptic-curve"
 version = "0.13.2"
 dependencies = [
  "base16ct",
- "base64ct",
+ "base64ct 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "crypto-bigint",
  "digest",
  "ff",
@@ -113,7 +117,7 @@ dependencies = [
  "group",
  "hex-literal",
  "hkdf",
- "pem-rfc7468",
+ "pem-rfc7468 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkcs8",
  "rand_core",
  "sec1",
@@ -226,7 +230,15 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "88b39c9bfcfc231068454382784bb460aae594343fb030d46e9f50a645418412"
 dependencies = [
- "base64ct",
+ "base64ct 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "pem-rfc7468"
+version = "0.7.0"
+source = "git+https://github.com/RustCrypto/formats.git#fd069a6ff7a9f5abfd3d797b51f50ca0a5307e44"
+dependencies = [
+ "base64ct 1.6.0 (git+https://github.com/RustCrypto/formats.git)",
 ]
 
 [[package]]
@@ -326,10 +338,9 @@ dependencies = [
 [[package]]
 name = "spki"
 version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0445c905640145c7ea8c1993555957f65e7c46d0535b91ba501bc9bfc85522f"
+source = "git+https://github.com/RustCrypto/formats.git#fd069a6ff7a9f5abfd3d797b51f50ca0a5307e44"
 dependencies = [
- "base64ct",
+ "base64ct 1.6.0 (git+https://github.com/RustCrypto/formats.git)",
  "der",
 ]
 
@@ -374,6 +385,6 @@ dependencies = [
 
 [[package]]
 name = "zeroize"
-version = "1.5.7"
+version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c394b5bd0c6f669e7275d9c20aa90ae064cb22e75a1cad54e1b34088034b149f"
+checksum = "2a0956f1ba7c7909bfb66c2e9e4124ab6f6482560f6628b5aaeba39207c9aad9"
diff --git a/elliptic-curve/Cargo.toml b/elliptic-curve/Cargo.toml
index 6a34fbe12..0a5442935 100644
--- a/elliptic-curve/Cargo.toml
+++ b/elliptic-curve/Cargo.toml
@@ -74,3 +74,8 @@ voprf = ["digest"]
 [package.metadata.docs.rs]
 features = ["bits", "ecdh", "hash2curve", "jwk", "pem", "std", "voprf"]
 rustdoc-args = ["--cfg", "docsrs"]
+
+
+[patch.crates-io]
+der = { git = "https://github.com/RustCrypto/formats.git" }
+spki = { git = "https://github.com/RustCrypto/formats.git" }
diff --git a/elliptic-curve/src/public_key.rs b/elliptic-curve/src/public_key.rs
index 6af60d4dc..e2d71b3f0 100644
--- a/elliptic-curve/src/public_key.rs
+++ b/elliptic-curve/src/public_key.rs
@@ -12,6 +12,9 @@ use alloc::boxed::Box;
 #[cfg(feature = "jwk")]
 use crate::{JwkEcKey, JwkParameters};
 
+#[cfg(feature = "pkcs8")]
+use pkcs8::spki::{AlgorithmIdentifier, AssociatedAlgorithmIdentifier, ObjectIdentifier};
+
 #[cfg(feature = "pem")]
 use core::str::FromStr;
 
@@ -419,7 +422,20 @@ where
     }
 }
 
-#[cfg(all(feature = "pkcs8", feature = "sec1"))]
+#[cfg(feature = "pkcs8")]
+impl<C> AssociatedAlgorithmIdentifier for PublicKey<C>
+where
+    C: AssociatedOid + CurveArithmetic,
+{
+    type Params = ObjectIdentifier;
+
+    const ALGORITHM_IDENTIFIER: AlgorithmIdentifier<ObjectIdentifier> = AlgorithmIdentifier {
+        oid: ALGORITHM_OID,
+        parameters: Some(C::OID),
+    };
+}
+
+#[cfg(feature = "pkcs8")]
 impl<C> TryFrom<pkcs8::SubjectPublicKeyInfoRef<'_>> for PublicKey<C>
 where
     C: AssociatedOid + CurveArithmetic,
@@ -433,7 +449,7 @@ where
     }
 }
 
-#[cfg(all(feature = "pkcs8", feature = "sec1"))]
+#[cfg(feature = "pkcs8")]
 impl<C> TryFrom<&pkcs8::SubjectPublicKeyInfoRef<'_>> for PublicKey<C>
 where
     C: AssociatedOid + CurveArithmetic,
@@ -463,16 +479,11 @@ where
     FieldBytesSize<C>: ModulusSize,
 {
     fn to_public_key_der(&self) -> pkcs8::spki::Result<der::Document> {
-        let algorithm = pkcs8::AlgorithmIdentifierRef {
-            oid: ALGORITHM_OID,
-            parameters: Some((&C::OID).into()),
-        };
-
         let public_key_bytes = self.to_encoded_point(false);
         let subject_public_key = der::asn1::BitStringRef::new(0, public_key_bytes.as_bytes())?;
 
-        pkcs8::SubjectPublicKeyInfoRef {
-            algorithm,
+        pkcs8::SubjectPublicKeyInfo {
+            algorithm: Self::ALGORITHM_IDENTIFIER,
             subject_public_key,
         }
         .try_into()
diff --git a/elliptic-curve/src/secret_key/pkcs8.rs b/elliptic-curve/src/secret_key/pkcs8.rs
index 79215b71f..92c81f18a 100644
--- a/elliptic-curve/src/secret_key/pkcs8.rs
+++ b/elliptic-curve/src/secret_key/pkcs8.rs
@@ -6,6 +6,7 @@ use crate::{
     sec1::{ModulusSize, ValidatePublicKey},
     Curve, FieldBytesSize, ALGORITHM_OID,
 };
+use pkcs8::spki::{AlgorithmIdentifier, AssociatedAlgorithmIdentifier, ObjectIdentifier};
 use sec1::EcPrivateKey;
 
 // Imports for the `EncodePrivateKey` impl
@@ -26,9 +27,21 @@ use {
     pkcs8::DecodePrivateKey,
 };
 
+impl<C> AssociatedAlgorithmIdentifier for SecretKey<C>
+where
+    C: AssociatedOid + Curve,
+{
+    type Params = ObjectIdentifier;
+
+    const ALGORITHM_IDENTIFIER: AlgorithmIdentifier<ObjectIdentifier> = AlgorithmIdentifier {
+        oid: ALGORITHM_OID,
+        parameters: Some(C::OID),
+    };
+}
+
 impl<C> TryFrom<pkcs8::PrivateKeyInfo<'_>> for SecretKey<C>
 where
-    C: Curve + AssociatedOid + ValidatePublicKey,
+    C: AssociatedOid + Curve + ValidatePublicKey,
     FieldBytesSize<C>: ModulusSize,
 {
     type Error = pkcs8::Error;
@@ -51,6 +64,7 @@ where
     FieldBytesSize<C>: ModulusSize,
 {
     fn to_pkcs8_der(&self) -> pkcs8::Result<der::SecretDocument> {
+        // TODO(tarcieri): make `PrivateKeyInfo` generic around `Params`
         let algorithm_identifier = pkcs8::AlgorithmIdentifierRef {
             oid: ALGORITHM_OID,
             parameters: Some((&C::OID).into()),