Add changelog
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c62ea6c..b8eaff9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+# [5.1.0](https://github.com/constantoine/totp-rs/releases/tag/v5.1.0) (15/07/2023)
+### What's new
+- Added some more documentation.
+
+### Fix
+- Removed unnecessary allocation for `Secret.Display` for the `Raw` variant.
+
# [5.0.2](https://github.com/constantoine/totp-rs/releases/tag/v5.0.1) (15/05/2023)
### Fix
- Fix skew overflowing if value is over 128.