diff --git a/Changelog.md b/Changelog.md
index ea6be8a..b84caec 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -6,7 +6,7 @@ This is the changelog for the air quality web interface and its associated HTTP
  - `[Docs]` refers to changes to the [documentation](https://aq.connectedhumber.org/__nightdocs/00-Welcome.html).
 
 ## v0.11.1 - 22nd June 2019
- - Drastically improve the performance of the backend SQL queries that power the heatmap and device graphs by over 35x!
+ - Drastically improve the performance of the backend SQL queries that power the heatmap and device graphs by over 35x in some cases!
      - For users of the HTTP API, said queries are `fetch-data` and `device-data`.
 
 ## v0.11 - 21st June 2019