diff --git a/CHANGELOG.md b/CHANGELOG.md
index 888d800..9555c89 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## v0.9.1 (2025-06-27)
+
+### Fixes
+
+* [X509.Certificate] Fix signature algorithm for certificates signed by EdDSA keys
+
 ## v0.9.0 (2025-06-20)
 
 ### Enhancements
diff --git a/mix.exs b/mix.exs
index 2c994f5..82e2199 100644
--- a/mix.exs
+++ b/mix.exs
@@ -2,7 +2,7 @@ defmodule X509.MixProject do
   use Mix.Project
 
   @source_url "https://github.com/voltone/x509"
-  @version "0.9.0"
+  @version "0.9.1"
 
   def project do
     [