diff --git a/Cargo.lock b/Cargo.lock
index 225a9069..78ff16fb 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -368,15 +368,15 @@ dependencies = [
 
 [[package]]
 name = "ecdsa"
-version = "0.17.0-pre.8"
+version = "0.17.0-pre.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8fcbb0e60b9717a7dcee3a03d9d1f4513bd26e24d5f13b48bc03b144ba7bf99"
+checksum = "7e62f2041a28c40b8884b79fbd19bc7457d76c6397767831e9ff4029fc0473a9"
 dependencies = [
  "der",
  "digest",
  "elliptic-curve",
  "rfc6979",
- "serdect 0.2.0",
+ "serdect 0.3.0-rc.0",
  "signature",
  "spki",
 ]
@@ -389,9 +389,9 @@ checksum = "7fcaabb2fef8c910e7f4c7ce9f67a1283a1715879a7c230ca9d6d1ae31f16d91"
 
 [[package]]
 name = "elliptic-curve"
-version = "0.14.0-rc.0"
+version = "0.14.0-rc.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0532f93842f7a74b76f927c2495bf3557faa1db03adf829f9e7ecb8307f5785f"
+checksum = "cc43715037532dc2d061e5c97e81b684c28993d52a4fa4eb7d2ce2826d78f2f2"
 dependencies = [
  "base16ct",
  "base64ct",
@@ -407,7 +407,7 @@ dependencies = [
  "rand_core",
  "sec1",
  "serde_json",
- "serdect 0.3.0-pre.0",
+ "serdect 0.3.0-rc.0",
  "subtle",
  "tap",
  "zeroize",
@@ -1105,15 +1105,15 @@ checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
 [[package]]
 name = "sec1"
-version = "0.8.0-rc.1"
+version = "0.8.0-rc.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "99890e11f8ab873d750adfe2a8e46062d6f8b78431d3ec1e0e7daba10b8ba397"
+checksum = "ce9453a41af5251f8439173d21b0ed2ae5d4a7c411abb76661806a44811a9d2c"
 dependencies = [
  "base16ct",
  "der",
  "hybrid-array",
  "pkcs8",
- "serdect 0.3.0-pre.0",
+ "serdect 0.3.0-rc.0",
  "subtle",
  "zeroize",
 ]
@@ -1162,9 +1162,9 @@ dependencies = [
 
 [[package]]
 name = "serdect"
-version = "0.3.0-pre.0"
+version = "0.3.0-rc.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "791ef964bfaba6be28a5c3f0c56836e17cb711ac009ca1074b9c735a3ebf240a"
+checksum = "2a504c8ee181e3e594d84052f983d60afe023f4d94d050900be18062bbbf7b58"
 dependencies = [
  "base16ct",
  "serde",
diff --git a/bp256/Cargo.toml b/bp256/Cargo.toml
index 76131d23..bea07944 100644
--- a/bp256/Cargo.toml
+++ b/bp256/Cargo.toml
@@ -17,7 +17,7 @@ rust-version = "1.73"
 elliptic-curve = { version = "0.14.0-rc.0", default-features = false, features = ["sec1"] }
 
 # optional dependencies
-ecdsa = { version = "=0.17.0-pre.8", optional = true, default-features = false, features = ["der"] }
+ecdsa = { version = "=0.17.0-pre.9", optional = true, default-features = false, features = ["der"] }
 primeorder = { version = "=0.14.0-pre.1", optional = true, path = "../primeorder" }
 sha2 = { version = "=0.11.0-pre.4", optional = true, default-features = false }
 
diff --git a/bp384/Cargo.toml b/bp384/Cargo.toml
index ca135f96..417d65a6 100644
--- a/bp384/Cargo.toml
+++ b/bp384/Cargo.toml
@@ -17,7 +17,7 @@ rust-version = "1.73"
 elliptic-curve = { version = "0.14.0-rc.0", default-features = false, features = ["sec1"] }
 
 # optional dependencies
-ecdsa = { version = "=0.17.0-pre.8", optional = true, default-features = false, features = ["der"] }
+ecdsa = { version = "=0.17.0-pre.9", optional = true, default-features = false, features = ["der"] }
 primeorder = { version = "=0.14.0-pre.1", optional = true, path = "../primeorder" }
 sha2 = { version = "=0.11.0-pre.4", optional = true, default-features = false }
 
diff --git a/k256/Cargo.toml b/k256/Cargo.toml
index 5a808104..6774970f 100644
--- a/k256/Cargo.toml
+++ b/k256/Cargo.toml
@@ -24,7 +24,7 @@ elliptic-curve = { version = "0.14.0-rc.0", default-features = false, features =
 
 # optional dependencies
 once_cell = { version = "1.19", optional = true, default-features = false }
-ecdsa-core = { version = "=0.17.0-pre.8", package = "ecdsa", optional = true, default-features = false, features = ["der"] }
+ecdsa-core = { version = "=0.17.0-pre.9", package = "ecdsa", optional = true, default-features = false, features = ["der"] }
 hex-literal = { version = "0.4", optional = true }
 serdect = { version = "0.2", optional = true, default-features = false }
 sha2 = { version = "=0.11.0-pre.4", optional = true, default-features = false }
@@ -33,7 +33,7 @@ signature = { version = "=2.3.0-pre.4", optional = true }
 [dev-dependencies]
 blobby = "0.3"
 criterion = "0.5"
-ecdsa-core = { version = "=0.17.0-pre.8", package = "ecdsa", default-features = false, features = ["dev"] }
+ecdsa-core = { version = "=0.17.0-pre.9", package = "ecdsa", default-features = false, features = ["dev"] }
 hex = "0.4.3"
 hex-literal = "0.4"
 num-bigint = "0.4"
diff --git a/p192/Cargo.toml b/p192/Cargo.toml
index efb9360d..e8019ea6 100644
--- a/p192/Cargo.toml
+++ b/p192/Cargo.toml
@@ -21,13 +21,13 @@ elliptic-curve = { version = "0.14.0-rc.0", default-features = false, features =
 sec1 = { version = "0.8.0-rc.1", default-features = false }
 
 # optional dependencies
-ecdsa-core = { version = "=0.17.0-pre.8", package = "ecdsa", optional = true, default-features = false, features = ["der"] }
+ecdsa-core = { version = "=0.17.0-pre.9", package = "ecdsa", optional = true, default-features = false, features = ["der"] }
 hex-literal = { version = "0.4", optional = true }
 primeorder = { version = "=0.14.0-pre.1", optional = true, path = "../primeorder" }
 serdect = { version = "0.2", optional = true, default-features = false }
 
 [dev-dependencies]
-ecdsa-core = { version = "=0.17.0-pre.8", package = "ecdsa", default-features = false, features = ["dev"] }
+ecdsa-core = { version = "=0.17.0-pre.9", package = "ecdsa", default-features = false, features = ["dev"] }
 hex-literal = "0.4"
 primeorder = { version = "=0.14.0-pre.1", features = ["dev"], path = "../primeorder" }
 
diff --git a/p224/Cargo.toml b/p224/Cargo.toml
index f587a616..5f0f2f9d 100644
--- a/p224/Cargo.toml
+++ b/p224/Cargo.toml
@@ -20,7 +20,7 @@ rust-version = "1.73"
 elliptic-curve = { version = "0.14.0-rc.0", default-features = false, features = ["sec1"] }
 
 # optional dependencies
-ecdsa-core = { version = "=0.17.0-pre.8", package = "ecdsa", optional = true, default-features = false, features = ["der"] }
+ecdsa-core = { version = "=0.17.0-pre.9", package = "ecdsa", optional = true, default-features = false, features = ["der"] }
 hex-literal = { version = "0.4", optional = true }
 primeorder = { version = "=0.14.0-pre.1", optional = true, path = "../primeorder" }
 serdect = { version = "0.2", optional = true, default-features = false }
@@ -28,7 +28,7 @@ sha2 = { version = "=0.11.0-pre.4", optional = true, default-features = false }
 
 [dev-dependencies]
 blobby = "0.3"
-ecdsa-core = { version = "=0.17.0-pre.8", package = "ecdsa", default-features = false, features = ["dev"] }
+ecdsa-core = { version = "=0.17.0-pre.9", package = "ecdsa", default-features = false, features = ["dev"] }
 hex-literal = "0.4"
 primeorder = { version = "=0.14.0-pre.1", features = ["dev"], path = "../primeorder" }
 rand_core = { version = "0.6", features = ["getrandom"] }
diff --git a/p256/Cargo.toml b/p256/Cargo.toml
index 5ab29b18..b701ef40 100644
--- a/p256/Cargo.toml
+++ b/p256/Cargo.toml
@@ -21,7 +21,7 @@ rust-version = "1.73"
 elliptic-curve = { version = "0.14.0-rc.0", default-features = false, features = ["sec1"] }
 
 # optional dependencies
-ecdsa-core = { version = "=0.17.0-pre.8", package = "ecdsa", optional = true, default-features = false, features = ["der"] }
+ecdsa-core = { version = "=0.17.0-pre.9", package = "ecdsa", optional = true, default-features = false, features = ["der"] }
 hex-literal = { version = "0.4", optional = true }
 primeorder = { version = "=0.14.0-pre.1", optional = true, path = "../primeorder" }
 serdect = { version = "0.2", optional = true, default-features = false }
@@ -30,7 +30,7 @@ sha2 = { version = "=0.11.0-pre.4", optional = true, default-features = false }
 [dev-dependencies]
 blobby = "0.3"
 criterion = "0.5"
-ecdsa-core = { version = "=0.17.0-pre.8", package = "ecdsa", default-features = false, features = ["dev"] }
+ecdsa-core = { version = "=0.17.0-pre.9", package = "ecdsa", default-features = false, features = ["dev"] }
 hex-literal = "0.4"
 primeorder = { version = "=0.14.0-pre.1", features = ["dev"], path = "../primeorder" }
 proptest = "1"
diff --git a/p384/Cargo.toml b/p384/Cargo.toml
index 46f09c92..0265c659 100644
--- a/p384/Cargo.toml
+++ b/p384/Cargo.toml
@@ -21,7 +21,7 @@ rust-version = "1.73"
 elliptic-curve = { version = "0.14.0-rc.0", default-features = false, features = ["sec1"] }
 
 # optional dependencies
-ecdsa-core = { version = "=0.17.0-pre.8", package = "ecdsa", optional = true, default-features = false, features = ["der"] }
+ecdsa-core = { version = "=0.17.0-pre.9", package = "ecdsa", optional = true, default-features = false, features = ["der"] }
 hex-literal = { version = "0.4", optional = true }
 primeorder = { version = "=0.14.0-pre.1", optional = true, path = "../primeorder" }
 serdect = { version = "0.2", optional = true, default-features = false }
@@ -30,7 +30,7 @@ sha2 = { version = "=0.11.0-pre.4", optional = true, default-features = false }
 [dev-dependencies]
 blobby = "0.3"
 criterion = "0.5"
-ecdsa-core = { version = "=0.17.0-pre.8", package = "ecdsa", default-features = false, features = ["dev"] }
+ecdsa-core = { version = "=0.17.0-pre.9", package = "ecdsa", default-features = false, features = ["dev"] }
 hex-literal = "0.4"
 primeorder = { version = "=0.14.0-pre.1", features = ["dev"], path = "../primeorder" }
 proptest = "1.5"
diff --git a/p521/Cargo.toml b/p521/Cargo.toml
index 04465bbd..76f2d49b 100644
--- a/p521/Cargo.toml
+++ b/p521/Cargo.toml
@@ -21,7 +21,7 @@ base16ct = "0.2"
 elliptic-curve = { version = "0.14.0-rc.0", default-features = false, features = ["sec1"] }
 
 # optional dependencies
-ecdsa-core = { version = "=0.17.0-pre.8", package = "ecdsa", optional = true, default-features = false, features = ["der"] }
+ecdsa-core = { version = "=0.17.0-pre.9", package = "ecdsa", optional = true, default-features = false, features = ["der"] }
 hex-literal = { version = "0.4", optional = true }
 primefield = { version = "=0.14.0-pre.0", optional = true, path = "../primefield" }
 primeorder = { version = "=0.14.0-pre.1", optional = true, path = "../primeorder" }
@@ -31,7 +31,7 @@ sha2 = { version = "=0.11.0-pre.4", optional = true, default-features = false }
 
 [dev-dependencies]
 blobby = "0.3"
-ecdsa-core = { version = "=0.17.0-pre.8", package = "ecdsa", default-features = false, features = ["dev"] }
+ecdsa-core = { version = "=0.17.0-pre.9", package = "ecdsa", default-features = false, features = ["dev"] }
 hex-literal = "0.4"
 primeorder = { version = "=0.14.0-pre.1", features = ["dev"], path = "../primeorder" }
 proptest = "1.5"