diff --git a/Gemfile.lock b/Gemfile.lock
index 7e4970df..767864bd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -16,7 +16,7 @@ GEM
       addressable (~> 2.3)
       colored (~> 1.2)
       mercenary (~> 0.3.2)
-      nokogiri (~> 1.5)
+      nokogiri (~> 1.8.1)
       parallel (~> 1.3)
       typhoeus (~> 0.7)
       yell (~> 2.0)
@@ -49,10 +49,10 @@ GEM
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
     mercenary (0.3.5)
-    mini_portile2 (2.0.0)
+    mini_portile2 (2.3.0)
     multi_json (1.11.2)
-    nokogiri (1.6.7.1)
-      mini_portile2 (~> 2.0.0.rc2)
+    nokogiri (1.8.1)
+      mini_portile2 (~> 2.3.0)
     parallel (1.6.1)
     rake (10.4.2)
     rb-fsevent (0.9.7)