diff --git a/CHANGELOG.md b/CHANGELOG.md
index 152f0ddd3da..29720671888 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ client reference ID, Apollo Server will now default to the values present in the
 of the request (`apollographql-client-name`, `apollographql-client-reference-id` and
 `apollographql-client-version` respectively).  As a last resort, when those headers are not set,
 the query extensions' `clientInfo` values will be used. [PR #1960](https://github.com/apollographql/apollo-server/pull/1960)
+- Set content type of playground index.html to text/html. [PR #2026](https://github.com/apollographql/apollo-server/pull/2026)
 
 ### v2.2.2