diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 05b9afb..1633679 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -221,7 +221,7 @@ GEM
     lumberjack (1.0.13)
     mercenary (0.3.6)
     method_source (0.9.0)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     minima (2.5.0)
       jekyll (~> 3.5)
       jekyll-feed (~> 0.9)
@@ -230,8 +230,9 @@ GEM
     multi_json (1.13.1)
     multipart-post (2.0.0)
     nenv (0.3.0)
-    nokogiri (1.8.4)
-      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)
@@ -243,6 +244,7 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     public_suffix (2.0.5)
+    racc (1.6.0)
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)