diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9028d73..f2ab57a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,25 @@
-# Versions
+# Hanami::DB
 
-## 0.0.0 (?)
+The database layer for Hanami apps.
 
-* Pending...
+## [Unreleased]
+
+### Added
+
+### Changed
+
+### Deprecated
+
+### Removed
+
+### Fixed
+
+### Security
+
+## [1.0.0] - 2024-11-02
+
+### Added
+
+- Initial release (@waiting-for-dev)
+
+[v1.0.0]: https://github.com/dry-rb/dry-operation/releases/tag/v1.0.0
diff --git a/dry-operation.gemspec b/dry-operation.gemspec
index 1fbf469..a428650 100644
--- a/dry-operation.gemspec
+++ b/dry-operation.gemspec
@@ -1,8 +1,12 @@
 # frozen_string_literal: true
 
+lib = File.expand_path("lib", __dir__)
+$LOAD_PATH.prepend(lib) unless $LOAD_PATH.include?(lib)
+require "dry/operation/version"
+
 Gem::Specification.new do |spec|
   spec.name = "dry-operation"
-  spec.version = "0.0.0"
+  spec.version = Dry::Operation::VERSION
   spec.authors = ["dry-rb team"]
   spec.email = ["gems@dry-rb.org"]
   spec.homepage = "https://dry-rb.org/gems/dry-operation"
diff --git a/lib/dry/operation/version.rb b/lib/dry/operation/version.rb
new file mode 100644
index 0000000..aad8365
--- /dev/null
+++ b/lib/dry/operation/version.rb
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+module Dry
+  class Operation
+    VERSION = "1.0.0"
+  end
+end