diff --git a/Cargo.lock b/Cargo.lock
index 88fa12f54..0cd3a1dcc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -423,7 +423,7 @@ dependencies = [
 
 [[package]]
 name = "k256"
-version = "0.5.5"
+version = "0.5.6"
 dependencies = [
  "cfg-if",
  "criterion",
diff --git a/k256/CHANGELOG.md b/k256/CHANGELOG.md
index 8b5de35e5..ca34bb342 100644
--- a/k256/CHANGELOG.md
+++ b/k256/CHANGELOG.md
@@ -4,7 +4,13 @@ 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).
 
-## 0.5.5 (202-09-27)
+## 0.5.6 (2020-09-28)
+### Added
+- Enable `endomorphism-mul` optimizations by default ([#213])
+
+[#213]: https://github.com/RustCrypto/elliptic-curves/pull/213
+
+## 0.5.5 (2020-09-27)
 ### Added
 - Impl `FromEncodedPoint` for `ProjectivePoint` ([#210])
 - Impl `ToEncodedPoint` for `ecdsa::VerifyKey` ([#209])
diff --git a/k256/Cargo.toml b/k256/Cargo.toml
index ceec16ccc..530daa20a 100644
--- a/k256/Cargo.toml
+++ b/k256/Cargo.toml
@@ -6,7 +6,7 @@ signing/verification (including Ethereum-style signatures with public-key
 recovery), Elliptic Curve Diffie-Hellman (ECDH), and general purpose curve
 arithmetic which can be used to implement arbitrary group-based protocols.
 """
-version = "0.5.5"
+version = "0.5.6"
 authors = ["RustCrypto Developers"]
 license = "Apache-2.0 OR MIT"
 documentation = "https://docs.rs/elliptic-curve"
diff --git a/k256/src/lib.rs b/k256/src/lib.rs
index 4cdcbb78d..4c069e32e 100644
--- a/k256/src/lib.rs
+++ b/k256/src/lib.rs
@@ -44,7 +44,7 @@
 #![doc(
     html_logo_url = "https://raw.githubusercontent.com/RustCrypto/meta/master/logo.svg",
     html_favicon_url = "https://raw.githubusercontent.com/RustCrypto/meta/master/logo.svg",
-    html_root_url = "https://docs.rs/k256/0.5.5"
+    html_root_url = "https://docs.rs/k256/0.5.6"
 )]
 #![forbid(unsafe_code)]
 #![warn(missing_docs, rust_2018_idioms, unused_qualifications)]