diff --git a/Gemfile.lock b/Gemfile.lock
index 1467f8e905..4acc4c5c12 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,7 +11,7 @@ GEM
       public_suffix (>= 2.0.2, < 6.0)
     afm (0.2.2)
     ansi (1.5.0)
-    async (2.6.4)
+    async (2.6.5)
       console (~> 1.10)
       fiber-annotation
       io-event (~> 1.1)