diff --git a/Gemfile.lock b/Gemfile.lock
old mode 100755
new mode 100644
index 0ab153d..1debaeb
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -86,7 +86,7 @@ GEM
     nio4r (2.3.1)
     nokogiri (1.8.5)
       mini_portile2 (~> 2.3.0)
-    rack (2.0.5)
+    rack (2.2.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails (5.2.0)