diff --git a/ruby/google_drive-trial/Gemfile.lock b/ruby/google_drive-trial/Gemfile.lock
index d0905ee..d882359 100644
--- a/ruby/google_drive-trial/Gemfile.lock
+++ b/ruby/google_drive-trial/Gemfile.lock
@@ -11,10 +11,13 @@ GEM
     httpauth (0.2.0)
     jwt (0.1.7)
       multi_json (>= 1.5)
+    mini_portile2 (2.5.1)
     multi_json (1.6.1)
     multi_xml (0.5.3)
     multipart-post (1.2.0)
-    nokogiri (1.5.6)
+    nokogiri (1.11.5)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     oauth (0.4.7)
     oauth2 (0.9.1)
       faraday (~> 0.8)
@@ -23,6 +26,7 @@ GEM
       multi_json (~> 1.0)
       multi_xml (~> 0.5)
       rack (~> 1.2)
+    racc (1.5.2)
     rack (1.5.2)
 
 PLATFORMS