diff --git a/server_rails/Gemfile.lock b/server_rails/Gemfile.lock
index 07fffb6..c42d7df 100644
--- a/server_rails/Gemfile.lock
+++ b/server_rails/Gemfile.lock
@@ -64,6 +64,8 @@ GEM
     mini_portile2 (2.4.0)
     minitest (5.11.3)
     nio4r (2.3.1)
+    nokogiri (1.10.2)
+      mini_portile2 (~> 2.4.0)
     nokogiri (1.10.2-x64-mingw32)
       mini_portile2 (~> 2.4.0)
     nokogiri (1.10.2-x86-mingw32)
@@ -95,7 +97,7 @@ GEM
       method_source
       rake (>= 0.8.7)
       thor (>= 0.19.0, < 2.0)
-    rake (12.3.2)
+    rake (13.0.1)
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
@@ -112,6 +114,7 @@ GEM
     websocket-extensions (0.1.3)
 
 PLATFORMS
+  ruby
   x64-mingw32
   x86-mingw32