diff --git a/Gemfile.lock b/Gemfile.lock
index c902f13..fff0d0e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -86,10 +86,10 @@ GEM
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
     mime-types (1.25.1)
-    mini_portile (0.5.2)
+    mini_portile2 (2.4.0)
     multi_json (1.11.2)
-    nokogiri (1.6.1)
-      mini_portile (~> 0.5.0)
+    nokogiri (1.9.1)
+      mini_portile2 (~> 2.4.0)
     pg (0.17.1)
     polyglot (0.3.5)
     rack (1.4.7)