Update

Gemfile.lock

 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (4.2.5.1)
+    activesupport (4.2.6)
       i18n (~> 0.7)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
     addressable (2.4.0)
-    bibtex-ruby (4.2.0)
+    bibtex-ruby (4.3.0)
       latex-decode (~> 0.0)
     citeproc (1.0.2)
       namae (~> 0.8)
@@ -25,7 +25,7 @@ GEM
     ethon (0.8.1)
       ffi (>= 1.3.0)
     ffi (1.9.10)
-    html-proofer (2.6.4)
+    html-proofer (3.0.5)
       activesupport (~> 4.2)
       addressable (~> 2.3)
       colored (~> 1.2)
@@ -46,7 +46,7 @@ GEM
       safe_yaml (~> 1.0)
     jekyll-sass-converter (1.4.0)
       sass (~> 3.4)
-    jekyll-scholar (5.7.1)
+    jekyll-scholar (5.7.2)
       bibtex-ruby (~> 4.0, >= 4.0.13)
       citeproc-ruby (~> 1.0)
       csl-styles (~> 1.0)
@@ -54,32 +54,32 @@ GEM
     jekyll-watch (1.3.1)
       listen (~> 3.0)
     json (1.8.3)
-    kramdown (1.9.0)
+    kramdown (1.10.0)
     latex-decode (0.2.2)
       unicode (~> 0.4)
     liquid (3.0.6)
     listen (3.0.6)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9.7)
-    mercenary (0.3.5)
+    mercenary (0.3.6)
     method_source (0.8.2)
     mini_portile2 (2.0.0)
     minitest (5.8.4)
     namae (0.10.1)
     nokogiri (1.6.7.2)
       mini_portile2 (~> 2.0.0.rc2)
-    parallel (1.6.1)
+    parallel (1.8.0)
     pry (0.10.3)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    rake (10.5.0)
+    rake (11.1.2)
     rb-fsevent (0.9.7)
     rb-inotify (0.9.7)
       ffi (>= 0.5.0)
     rouge (1.10.1)
     safe_yaml (1.0.4)
-    sass (3.4.21)
+    sass (3.4.22)
     slop (3.6.0)
     thread_safe (0.3.5)
     typhoeus (0.8.0)