diff --git a/Cargo.lock b/Cargo.lock
index 563249b1..3d51672c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1105,9 +1105,9 @@ checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
 [[package]]
 name = "sec1"
-version = "0.8.0-rc.2"
+version = "0.8.0-rc.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ce9453a41af5251f8439173d21b0ed2ae5d4a7c411abb76661806a44811a9d2c"
+checksum = "d1988446eff153796413a73669dfaa4caa3f5ce8b25fac89e3821a39c611772e"
 dependencies = [
  "base16ct",
  "der",
diff --git a/bign256/Cargo.toml b/bign256/Cargo.toml
index 2705d684..a8ef89fc 100644
--- a/bign256/Cargo.toml
+++ b/bign256/Cargo.toml
@@ -31,7 +31,7 @@ rand_core = "0.6.4"
 rfc6979 = { version = "=0.5.0-pre.4", optional = true }
 pkcs8 = { version = "0.11.0-rc.1", optional = true }
 primeorder = { version = "=0.14.0-pre.2", optional = true, path = "../primeorder" }
-sec1 = { version = "0.8.0-rc.1", optional = true }
+sec1 = { version = "0.8.0-rc.3", optional = true }
 signature = { version = "=2.3.0-pre.4", optional = true }
 
 [dev-dependencies]
diff --git a/p192/Cargo.toml b/p192/Cargo.toml
index 5f5b6419..56580839 100644
--- a/p192/Cargo.toml
+++ b/p192/Cargo.toml
@@ -18,7 +18,7 @@ rust-version = "1.81"
 
 [dependencies]
 elliptic-curve = { version = "0.14.0-rc.0", default-features = false, features = ["sec1"] }
-sec1 = { version = "0.8.0-rc.1", default-features = false }
+sec1 = { version = "0.8.0-rc.3", default-features = false }
 
 # optional dependencies
 ecdsa-core = { version = "=0.17.0-pre.9", package = "ecdsa", optional = true, default-features = false, features = ["der"] }