diff --git a/yarn.lock b/yarn.lock
index 8f4502a3..66a3f7dc 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3683,8 +3683,8 @@ events@^3.0.0, events@^3.2.0:
   resolved "https://registry.yarnpkg.com/events/-/events-3.2.0.tgz#93b87c18f8efcd4202a461aec4dfc0556b639379"
 
 eventsource@^1.0.7:
-  version "1.0.7"
-  resolved "https://registry.yarnpkg.com/eventsource/-/eventsource-1.0.7.tgz#8fbc72c93fcd34088090bc0a4e64f4b5cee6d8d0"
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/eventsource/-/eventsource-1.1.1.tgz#4544a35a57d7120fba4fa4c86cb4023b2c09df2f"
   dependencies:
     original "^1.0.0"