diff --git a/Cargo.lock b/Cargo.lock
index 4cfc61e0..74d2a0d4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -43,7 +43,7 @@ checksum = "8c3c1a368f70d6cf7302d78f8f7093da241fb8e8807c05cc9e51a125895a6d5b"
 
 [[package]]
 name = "bign256"
-version = "0.0.0"
+version = "0.13.0"
 dependencies = [
  "criterion",
  "elliptic-curve",
@@ -338,9 +338,9 @@ dependencies = [
 
 [[package]]
 name = "digest"
-version = "0.10.6"
+version = "0.10.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8168378f4e5023e7218c89c891c0fd8ecdb5e5e4f18cb78f38cf245dd021e76f"
+checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
 dependencies = [
  "block-buffer",
  "const-oid",
@@ -1117,9 +1117,9 @@ dependencies = [
 
 [[package]]
 name = "sha2"
-version = "0.10.6"
+version = "0.10.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "82e6b795fe2e3b1e845bafcb27aa35405c4d47cdfc92af5fc8d3002f76cebdc0"
+checksum = "479fb9d862239e610720565ca91403019f2f00410f1864c5aa7479b950a76ed8"
 dependencies = [
  "cfg-if",
  "cpufeatures",
diff --git a/bign256/CHANGELOG.md b/bign256/CHANGELOG.md
index 9ae95379..d727ca96 100644
--- a/bign256/CHANGELOG.md
+++ b/bign256/CHANGELOG.md
@@ -4,3 +4,5 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 0.13.0 (2023-06-27)
+- Initial release
diff --git a/bign256/Cargo.toml b/bign256/Cargo.toml
index 6b9d379b..9657124c 100644
--- a/bign256/Cargo.toml
+++ b/bign256/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "bign256"
-version = "0.0.0"
+version = "0.13.0"
 description = """
 Pure Rust implementation of the Bign P-256 (a.k.a. bign-curve256v1)
 elliptic curve as defined in STB 34.101.45-2013, with