diff --git a/Gemfile.lock b/Gemfile.lock
index 45d739e..0248e77 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -146,14 +146,15 @@ GEM
       mini_mime (>= 0.1.1)
     method_source (0.9.0)
     mini_mime (1.0.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.5.0)
     minitest (5.11.3)
     multi_json (1.13.1)
     multi_xml (0.6.0)
     multipart-post (2.0.0)
     nenv (0.3.0)
-    nokogiri (1.8.2)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.11.2)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     notiffany (0.1.1)
       nenv (~> 0.1)
       shellany (~> 0.0)
@@ -177,6 +178,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (3.0.2)
+    racc (1.5.2)
     rack (1.6.9)
     rack-test (0.6.3)
       rack (>= 1.0)