diff --git a/microsite/yarn.lock b/microsite/yarn.lock
index 448647da15..84a93573bd 100644
--- a/microsite/yarn.lock
+++ b/microsite/yarn.lock
@@ -2477,9 +2477,9 @@ etag@~1.8.1:
   integrity sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc=
 
 eventsource@^1.0.7:
-  version "1.0.7"
-  resolved "https://registry.npmjs.org/eventsource/-/eventsource-1.0.7.tgz#8fbc72c93fcd34088090bc0a4e64f4b5cee6d8d0"
-  integrity sha512-4Ln17+vVT0k8aWq+t/bF5arcS3EpT9gYtW66EPacdj/mAFevznsnyoHLPy2BA8gbIQeIHoPsvwmfBftfcG//BQ==
+  version "1.1.1"
+  resolved "https://registry.npmjs.org/eventsource/-/eventsource-1.1.1.tgz#4544a35a57d7120fba4fa4c86cb4023b2c09df2f"
+  integrity sha512-qV5ZC0h7jYIAOhArFJgSfdyz6rALJyb270714o7ZtNnw2WSJ+eexhKtE0O8LYPRsHZHf2osHKZBxGPvm3kPkCA==
   dependencies:
     original "^1.0.0"