diff --git a/CHANGES.md b/CHANGES.md
index 75031986d3..052ab49599 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -5,7 +5,7 @@ Bugfixes
 --------
 
 - Fix the `PeriodicallyFlushingMemoryHandler` inhibiting application shutdown because of its background thread. ([\#10517](https://github.com/matrix-org/synapse/issues/10517))
-- Fix a bug introduced in Synapse v1.40.0rc1 that would cause Synapse to respond with an error when clients would update their read receipts. ([\#10531](https://github.com/matrix-org/synapse/issues/10531))
+- Fix a bug introduced in Synapse v1.40.0rc1 that could cause Synapse to respond with an error when clients would update their a receipts. ([\#10531](https://github.com/matrix-org/synapse/issues/10531))
 
 
 Internal Changes