diff --git a/Gemfile b/Gemfile
index ba9baea..f07c0c4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,14 +6,14 @@ gem 'jekyll-paginate'
 gem 'jekyll-tagging'
 gem 'jekyll-seo-tag'
 gem 'jekyll-sitemap'
-gem 'bootstrap-sass'
+gem 'bootstrap-sass', '>= 3.3.6'
 gem 'font-awesome-sass'
 gem 'html-proofer'
 gem 'sass'
 gem 'uglifier'
 
 group :jekyll_plugins do
-    gem 'algoliasearch-jekyll'
+    gem 'algoliasearch-jekyll', '>= 0.8.2'
 end
 source 'https://rails-assets.org' do
   gem 'rails-assets-jquery'
diff --git a/Gemfile.lock b/Gemfile.lock
index 88c7358..371302f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,33 +8,32 @@ GEM
       minitest (~> 5.1)
       tzinfo (~> 1.1)
     addressable (2.4.0)
-    algoliasearch (1.10.0)
-      httpclient (~> 2.7.1)
+    algoliasearch (1.27.1)
+      httpclient (~> 2.8, >= 2.8.3)
       json (>= 1.5.1)
-    algoliasearch-jekyll (0.8.0)
-      algoliasearch (~> 1.4)
+    algoliasearch-jekyll (0.9.1)
+      algoliasearch (~> 1.12)
       appraisal (~> 2.1.0)
       awesome_print (~> 1.6)
-      json (~> 1.8)
-      nokogiri (~> 1.6)
+      json (>= 1.8.6)
+      nokogiri (~> 1.7, >= 1.7.2)
       verbal_expressions (~> 0.1.5)
     appraisal (2.1.0)
       bundler
       rake
       thor (>= 0.14.0)
-    autoprefixer-rails (6.3.3)
+    autoprefixer-rails (9.7.4)
       execjs
-      json
-    awesome_print (1.7.0)
-    bootstrap-sass (3.3.6)
+    awesome_print (1.8.0)
+    bootstrap-sass (3.4.1)
       autoprefixer-rails (>= 5.2.1)
-      sass (>= 3.3.4)
+      sassc (>= 2.0.0)
     colorator (0.1)
     colored (1.2)
     concurrent-ruby (1.0.2)
     ethon (0.10.1)
       ffi (>= 1.3.0)
-    execjs (2.6.0)
+    execjs (2.7.0)
     extras (0.1.0)
       forwardable-extended (~> 2.5)
     fastimage (2.0.0)
@@ -52,7 +51,7 @@ GEM
       parallel (~> 1.3)
       typhoeus (~> 0.7)
       yell (~> 2.0)
-    httpclient (2.7.2)
+    httpclient (2.8.3)
     i18n (0.7.0)
     jekyll (3.1.2)
       colorator (~> 0.1)
@@ -80,26 +79,24 @@ GEM
       ruby-nuggets
     jekyll-watch (1.3.1)
       listen (~> 3.0)
-    json (1.8.3)
+    json (2.3.0)
     kramdown (1.10.0)
     liquid (3.0.6)
     listen (3.0.6)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9.7)
     mercenary (0.3.6)
-    mini_portile2 (2.1.0)
+    mini_portile2 (2.4.0)
     minitest (5.10.1)
-    nokogiri (1.6.8)
-      mini_portile2 (~> 2.1.0)
-      pkg-config (~> 1.1.7)
+    nokogiri (1.10.9)
+      mini_portile2 (~> 2.4.0)
     nuggets (1.0.0)
     parallel (1.10.0)
     pathutil (0.9.0)
       forwardable-extended (~> 2.6)
-    pkg-config (1.1.7)
     rack (1.6.4)
     rails-assets-jquery (2.2.3)
-    rake (11.2.2)
+    rake (13.0.1)
     rb-fsevent (0.9.7)
     rb-inotify (0.9.7)
       ffi (>= 0.5.0)
@@ -107,11 +104,17 @@ GEM
     ruby-nuggets (1.0.0)
       nuggets (= 1.0.0)
     safe_yaml (1.0.4)
-    sass (3.4.22)
+    sass (3.7.4)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+    sassc (2.2.1)
+      ffi (~> 1.9)
     sprockets (3.6.0)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
-    thor (0.19.1)
+    thor (1.0.1)
     thread_safe (0.3.5)
     typhoeus (0.8.0)
       ethon (>= 0.8.0)
@@ -126,8 +129,8 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  algoliasearch-jekyll
-  bootstrap-sass
+  algoliasearch-jekyll (>= 0.8.2)
+  bootstrap-sass (>= 3.3.6)
   font-awesome-sass
   html-proofer
   jekyll
@@ -141,4 +144,4 @@ DEPENDENCIES
   uglifier
 
 BUNDLED WITH
-   1.14.0
+   1.17.3