diff --git a/Gemfile.lock b/Gemfile.lock
index e34da0a..50f609b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -184,15 +184,16 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
     mini_mime (0.1.4)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     mini_racer (0.1.14)
       libv8 (~> 5.9)
     minitest (5.10.3)
     multi_json (1.12.2)
     nenv (0.3.0)
     nio4r (2.1.0)
-    nokogiri (1.8.1)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     notiffany (0.1.1)
       nenv (~> 0.1)
       shellany (~> 0.0)
@@ -212,6 +213,7 @@ GEM
       method_source (~> 0.9.0)
     public_suffix (3.0.0)
     puma (3.10.0)
+    racc (1.6.0)
     rack (2.0.3)
     rack-test (0.7.0)
       rack (>= 1.0, < 3)