diff --git a/CHANGELOG.md b/CHANGELOG.md
index ea7033d..e89abbb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,12 @@
+## [3.1.0] - 2026-11-09
+
+## What's Changed
+* Add SubAccountsApi.delete for DELETE /api/organizations/{id}/sub_accounts/{id} by @oshchyhol in https://github.com/mailtrap/mailtrap-python/pull/83
+* Add Sandbox and Domain names; deprecate Testing, Inbox, SendingDomain by @Rabsztok in https://github.com/mailtrap/mailtrap-python/pull/92
+
+
+**Full Changelog**: https://github.com/mailtrap/mailtrap-python/compare/v3.0.0...v3.1.0
+
 ## [3.0.0] - 2026-10-29
 
 ## What's Changed
diff --git a/pyproject.toml b/pyproject.toml
index a0a4b77..592843d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "mailtrap"
-version = "3.0.0"
+version = "3.1.0"
 description = "Official mailtrap.io API client"
 readme = "README.md"
 license = {file = "LICENSE.txt"}