diff --git a/Gemfile.lock b/Gemfile.lock
index 9f56cf1..19788ca 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -186,4 +186,4 @@ RUBY VERSION
    ruby 2.5.3p105
 
 BUNDLED WITH
-   2.0.1
+   1.17.3