diff --git a/Gemfile.lock b/Gemfile.lock
index 6a0b314..fa641b2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -207,7 +207,7 @@ GEM
     plist (3.5.0)
     proxifier (1.0.3)
     public_suffix (4.0.6)
-    rack (2.2.3)
+    rack (2.2.6.2)
     rainbow (3.0.0)
     retryable (3.0.5)
     ruby-progressbar (1.10.1)