diff --git a/ChangeLog.md b/ChangeLog.md
index 316e806..9011d38 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -67,6 +67,8 @@ Generated by [`auto-changelog`](https://github.com/CookPete/auto-changelog).
 
 - Guard daemon threads against unhandled loop() exceptions [`7f6bcef`](https://github.com/craigerl/aprsd/commit/7f6bcef)
 
+- Run TX throttle sleep outside the global send lock [`a91f566`](https://github.com/craigerl/aprsd/commit/a91f566)
+
 ##### Tests
 
 - Call `_attach_piggyback_ack` on a real thread instance [`39be5d4`](https://github.com/craigerl/aprsd/commit/39be5d4)
diff --git a/docs/source/changelog.md b/docs/source/changelog.md
index 8777a74..e64536f 100644
--- a/docs/source/changelog.md
+++ b/docs/source/changelog.md
@@ -67,6 +67,8 @@ Generated by [`auto-changelog`](https://github.com/CookPete/auto-changelog).
 
 - Guard daemon threads against unhandled loop() exceptions [`7f6bcef`](https://github.com/craigerl/aprsd/commit/7f6bcef)
 
+- Run TX throttle sleep outside the global send lock [`a91f566`](https://github.com/craigerl/aprsd/commit/a91f566)
+
 ### Tests
 
 - Call `_attach_piggyback_ack` on a real thread instance [`39be5d4`](https://github.com/craigerl/aprsd/commit/39be5d4)