diff --git a/CHANGELOG.md b/CHANGELOG.md
index ba96616..c747baf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,8 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## [1.0.0] - 2024-12-06
+
 ### Updated
 
 - Modified posting field to become a suffix, for a more detailed order reference
@@ -33,5 +35,6 @@ Versioning](https://semver.org/spec/v2.0.0.html).
 
 - Corrected format of payment methods
 
-[Unreleased]: https://github.com/itk-dev/os2forms_selvbetjening/compare/0.1.0...HEAD
+[Unreleased]: https://github.com/itk-dev/os2forms_selvbetjening/compare/1.0.0...HEAD
+[1.0.0]: https://github.com/itk-dev/os2forms_selvbetjening/compare/0.1.0...1.0.0
 [0.1.0]: https://github.com/itk-dev/os2forms_payment/releases/tag/0.1.0