diff --git a/Gemfile.lock b/Gemfile.lock
index 4a3bfa9..e605ae0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -33,14 +33,14 @@ GEM
     macaddr (1.7.1)
       systemu (~> 2.6.2)
     mime-types (2.6.2)
-    mini_portile2 (2.1.0)
+    mini_portile2 (2.8.0)
     multi_json (1.12.1)
     multi_test (0.1.2)
     multi_xml (0.5.5)
-    nokogiri (1.6.8)
-      mini_portile2 (~> 2.1.0)
-      pkg-config (~> 1.1.7)
-    pkg-config (1.1.7)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
+    racc (1.6.0)
     rack (1.6.4)
     rack-test (0.6.2)
       rack (>= 1.0)