diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index a4f1890..43d4546 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -6,8 +6,8 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     bibtex-ruby (4.4.7)
       latex-decode (~> 0.0)
     citeproc (1.0.9)
@@ -232,7 +232,9 @@ GEM
     latex-decode (0.3.1)
     liquid (4.0.0)
     listen (3.1.5)
+      rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
+      ruby_dep (~> 1.2)
     lumberjack (1.0.13)
     mercenary (0.3.6)
     method_source (0.9.2)
@@ -265,6 +267,7 @@ GEM
     rouge (2.2.1)
     ruby-enum (0.7.2)
       i18n
+    ruby_dep (1.5.0)
     rubyzip (1.2.3)
     safe_yaml (1.0.5)
     sass (3.7.4)