diff --git a/Cargo.lock b/Cargo.lock
index db7aa303..561f50e5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -368,8 +368,9 @@ dependencies = [
 
 [[package]]
 name = "ecdsa"
-version = "0.17.0-pre.7"
-source = "git+https://github.com/RustCrypto/signatures.git#839cbdabfe3538b347ac4186eb504658cf46e6c6"
+version = "0.17.0-pre.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f8fcbb0e60b9717a7dcee3a03d9d1f4513bd26e24d5f13b48bc03b144ba7bf99"
 dependencies = [
  "der",
  "digest",
@@ -1034,7 +1035,8 @@ checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f"
 [[package]]
 name = "rfc6979"
 version = "0.5.0-pre.4"
-source = "git+https://github.com/RustCrypto/signatures.git#839cbdabfe3538b347ac4186eb504658cf46e6c6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "871ee76a3eee98b0f805e5d1caf26929f4565073c580c053a55f886fc15dea49"
 dependencies = [
  "hmac",
  "subtle",
diff --git a/Cargo.toml b/Cargo.toml
index 0fd2d844..126bda12 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,3 @@ members = [
 
 [profile.dev]
 opt-level = 2
-
-[patch.crates-io]
-ecdsa = { git = "https://github.com/RustCrypto/signatures.git" }
-rfc6979 = { git = "https://github.com/RustCrypto/signatures.git" }
diff --git a/bp256/Cargo.toml b/bp256/Cargo.toml
index b61c151f..76131d23 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.7", optional = true, default-features = false, features = ["der"] }
+ecdsa = { version = "=0.17.0-pre.8", 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 b05ebe2c..ca135f96 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.7", optional = true, default-features = false, features = ["der"] }
+ecdsa = { version = "=0.17.0-pre.8", 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 41bcbdf6..5a808104 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.7", package = "ecdsa", optional = true, default-features = false, features = ["der"] }
+ecdsa-core = { version = "=0.17.0-pre.8", 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.7", package = "ecdsa", default-features = false, features = ["dev"] }
+ecdsa-core = { version = "=0.17.0-pre.8", 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 5745c5fd..efb9360d 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.7", package = "ecdsa", optional = true, default-features = false, features = ["der"] }
+ecdsa-core = { version = "=0.17.0-pre.8", 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.7", package = "ecdsa", default-features = false, features = ["dev"] }
+ecdsa-core = { version = "=0.17.0-pre.8", 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 881af93a..f587a616 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.7", package = "ecdsa", optional = true, default-features = false, features = ["der"] }
+ecdsa-core = { version = "=0.17.0-pre.8", 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.7", package = "ecdsa", default-features = false, features = ["dev"] }
+ecdsa-core = { version = "=0.17.0-pre.8", 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 f48fae24..1fb0f78d 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.7", package = "ecdsa", optional = true, default-features = false, features = ["der"] }
+ecdsa-core = { version = "=0.17.0-pre.8", 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.7", package = "ecdsa", default-features = false, features = ["dev"] }
+ecdsa-core = { version = "=0.17.0-pre.8", 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 b7c4e78e..614972de 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.7", package = "ecdsa", optional = true, default-features = false, features = ["der"] }
+ecdsa-core = { version = "=0.17.0-pre.8", 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.7", package = "ecdsa", default-features = false, features = ["dev"] }
+ecdsa-core = { version = "=0.17.0-pre.8", 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 27cb13b4..7cab2c57 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.7", package = "ecdsa", optional = true, default-features = false, features = ["der"] }
+ecdsa-core = { version = "=0.17.0-pre.8", 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.7", package = "ecdsa", default-features = false, features = ["dev"] }
+ecdsa-core = { version = "=0.17.0-pre.8", 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"