diff --git a/docs/Gemfile b/docs/Gemfile
index f144584eff350..cdedd95d15656 100644
--- a/docs/Gemfile
+++ b/docs/Gemfile
@@ -4,10 +4,10 @@ gem 'rake'
 
 # jekyll, which builds it all
 # 3.0 includes sass processing
-gem 'jekyll', '~>3.1'
+gem 'jekyll', '~> 3.6', '>= 3.6.3'
 
 # Jekyll extensions
-gem 'jekyll-redirect-from'
+gem 'jekyll-redirect-from', '>= 0.11.0'
 gem 'jekyll-paginate'
 
 # JSON
diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index bd775465628be..cbc5569d51130 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -1,31 +1,48 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    colorator (0.1)
-    ffi (1.9.14)
-    ffi (1.9.14-x64-mingw32)
-    jekyll (3.1.6)
-      colorator (~> 0.1)
+    addressable (2.6.0)
+      public_suffix (>= 2.0.2, < 4.0)
+    colorator (1.1.0)
+    concurrent-ruby (1.1.5)
+    em-websocket (0.5.1)
+      eventmachine (>= 0.12.9)
+      http_parser.rb (~> 0.6.0)
+    eventmachine (1.2.7)
+    eventmachine (1.2.7-x64-mingw32)
+    ffi (1.11.1)
+    ffi (1.11.1-x64-mingw32)
+    forwardable-extended (2.6.0)
+    http_parser.rb (0.6.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
+    jekyll (3.8.6)
+      addressable (~> 2.4)
+      colorator (~> 1.0)
+      em-websocket (~> 0.5)
+      i18n (~> 0.7)
       jekyll-sass-converter (~> 1.0)
-      jekyll-watch (~> 1.1)
-      kramdown (~> 1.3)
-      liquid (~> 3.0)
+      jekyll-watch (~> 2.0)
+      kramdown (~> 1.14)
+      liquid (~> 4.0)
       mercenary (~> 0.3.3)
-      rouge (~> 1.7)
+      pathutil (~> 0.9)
+      rouge (>= 1.7, < 4)
       safe_yaml (~> 1.0)
     jekyll-paginate (1.1.0)
-    jekyll-redirect-from (0.11.0)
-      jekyll (>= 2.0)
-    jekyll-sass-converter (1.4.0)
+    jekyll-redirect-from (0.15.0)
+      jekyll (>= 3.3, < 5.0)
+    jekyll-sass-converter (1.5.2)
       sass (~> 3.4)
-    jekyll-watch (1.4.0)
-      listen (~> 3.0, < 3.1)
+    jekyll-watch (2.2.1)
+      listen (~> 3.0)
     json (2.0.1)
-    kramdown (1.11.1)
-    liquid (3.0.6)
-    listen (3.0.8)
+    kramdown (1.17.0)
+    liquid (4.0.3)
+    listen (3.1.5)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
+      ruby_dep (~> 1.2)
     mercenary (0.3.6)
     mini_portile2 (2.1.0)
     nokogiri (1.6.8)
@@ -34,21 +51,29 @@ GEM
     nokogiri (1.6.8-x64-mingw32)
       mini_portile2 (~> 2.1.0)
       pkg-config (~> 1.1.7)
+    pathutil (0.16.2)
+      forwardable-extended (~> 2.6)
     pkg-config (1.1.7)
     posix-spawn (0.3.11)
+    public_suffix (3.1.1)
     pygments.rb (0.6.3)
       posix-spawn (~> 0.3.6)
       yajl-ruby (~> 1.2.0)
     rake (11.2.2)
-    rb-fsevent (0.9.7)
-    rb-inotify (0.9.7)
-      ffi (>= 0.5.0)
+    rb-fsevent (0.10.3)
+    rb-inotify (0.10.0)
+      ffi (~> 1.0)
     redcarpet (3.3.4)
-    rouge (1.11.1)
-    safe_yaml (1.0.4)
+    rouge (3.5.1)
+    ruby_dep (1.5.0)
+    safe_yaml (1.0.5)
     sanitize (2.1.0)
       nokogiri (>= 1.4.4)
-    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)
     yajl-ruby (1.2.1)
 
 PLATFORMS
@@ -56,9 +81,9 @@ PLATFORMS
   x64-mingw32
 
 DEPENDENCIES
-  jekyll (~> 3.1)
+  jekyll (~> 3.6, >= 3.6.3)
   jekyll-paginate
-  jekyll-redirect-from
+  jekyll-redirect-from (>= 0.11.0)
   json
   pygments.rb
   rake
@@ -67,4 +92,4 @@ DEPENDENCIES
   sanitize (~> 2.0)
 
 BUNDLED WITH
-   1.11.2
+   1.17.3