diff --git a/CHANGELOG.md b/CHANGELOG.md
index 457fd87..6e41cc3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,20 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.3.1](https://github.com/Agent-Card/ai-catalog-cli/compare/v0.3.0...v0.3.1) - 2026-10-29
+
+### Added
+
+- *(catalog)* discover the catalog when adding a domain or site URL ([#59](https://github.com/Agent-Card/ai-catalog-cli/pull/59))
+
+### Fixed
+
+- *(deps)* update the lockfile to fix known vulnerabilities ([#58](https://github.com/Agent-Card/ai-catalog-cli/pull/58))
+
+### Other
+
+- update Homebrew formula for v0.3.0 ([#56](https://github.com/Agent-Card/ai-catalog-cli/pull/56))
+
 ## [0.3.0](https://github.com/Agent-Card/ai-catalog-cli/compare/v0.2.2...v0.3.0) - 2026-10-21
 
 ### Added
diff --git a/Cargo.lock b/Cargo.lock
index 9269672..7143143 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -25,7 +25,7 @@ dependencies = [
 
 [[package]]
 name = "ai-catalog-cli"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = [
  "ai-catalog",
  "ai-catalog-discover",
diff --git a/Cargo.toml b/Cargo.toml
index 55fb4ed..c36c40b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,7 +8,7 @@ description = "Command-line tool for inspecting, validating, and packaging AI Ca
 keywords = ["ai", "catalog", "cli", "oci", "validation"]
 categories = ["command-line-utilities", "development-tools"]
 readme = "README.md"
-version = "0.3.0"
+version = "0.3.1"
 edition = "2024"
 license = "Apache-2.0"
 repository = "https://github.com/Agent-Card/ai-catalog-cli"