diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0f6569c..8ac0be7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,19 @@
 # Changelog
 
+## [1.0.0](https://github.com/Flagsmith/setup-cli/compare/v1.0.0...v1.0.0) (2026-08-20)
+
+### Features
+
+- Install the Flagsmith CLI and authenticate it via OIDC ([#1](https://github.com/Flagsmith/setup-cli/issues/1)) ([32ae142](https://github.com/Flagsmith/setup-cli/commit/32ae142e7828cb84bc84b4bc0e7eee686199b1ea))
+
+### Bug Fixes
+
+- **ci:** Release tags are prefixed with the package name ([#5](https://github.com/Flagsmith/setup-cli/issues/5)) ([189a610](https://github.com/Flagsmith/setup-cli/commit/189a6105b0007f83fab7e2564fd13d4de5ff819b))
+
+### Miscellaneous Chores
+
+- Force 1.0.0 release ([#4](https://github.com/Flagsmith/setup-cli/issues/4)) ([ef92e69](https://github.com/Flagsmith/setup-cli/commit/ef92e69a1d62aa43f88e801843e9d4dce567e610))
+
 ## [1.0.0](https://github.com/Flagsmith/setup-cli/compare/flagsmith-setup-cli-v1.0.0...flagsmith-setup-cli-v1.0.0) (2026-08-20)
 
 ### Features