diff --git a/Gemfile b/Gemfile
index 53044252a0..97a19188bc 100644
--- a/Gemfile
+++ b/Gemfile
@@ -39,7 +39,7 @@ group :doc do
   gem "sdoc", "1.0.0.beta2"
   gem "redcarpet", "~> 3.2.3", platforms: :ruby
   gem "w3c_validators"
-  gem "kindlerb", "0.1.1"
+  gem "kindlerb", ">= 1.0.1"
 end
 
 # Active Support.
diff --git a/Gemfile.lock b/Gemfile.lock
index d4059c607d..63850eee90 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -211,7 +211,7 @@ GEM
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
     json (2.0.2)
-    kindlerb (0.1.1)
+    kindlerb (1.0.1)
       mustache
       nokogiri
     listen (3.1.5)
@@ -239,19 +239,15 @@ GEM
     mysql2 (0.4.4-x64-mingw32)
     mysql2 (0.4.4-x86-mingw32)
     nio4r (1.2.1)
-    nokogiri (1.6.8)
+    nokogiri (1.6.8.1)
       mini_portile2 (~> 2.1.0)
-      pkg-config (~> 1.1.7)
-    nokogiri (1.6.8-x64-mingw32)
+    nokogiri (1.6.8.1-x64-mingw32)
       mini_portile2 (~> 2.1.0)
-      pkg-config (~> 1.1.7)
-    nokogiri (1.6.8-x86-mingw32)
+    nokogiri (1.6.8.1-x86-mingw32)
       mini_portile2 (~> 2.1.0)
-      pkg-config (~> 1.1.7)
     pg (0.19.0)
     pg (0.19.0-x64-mingw32)
     pg (0.19.0-x86-mingw32)
-    pkg-config (1.1.7)
     psych (2.1.1)
     puma (3.6.0)
     qu (0.2.0)
@@ -383,7 +379,7 @@ DEPENDENCIES
   em-hiredis
   hiredis
   jquery-rails
-  kindlerb (= 0.1.1)
+  kindlerb (>= 1.0.1)
   listen (>= 3.0.5, < 3.2)
   minitest (< 5.3.4)
   mocha (~> 0.14)
diff --git a/guides/Rakefile b/guides/Rakefile
index 353966fc55..bf501f6a64 100644
--- a/guides/Rakefile
+++ b/guides/Rakefile
@@ -13,7 +13,7 @@ namespace :guides do
 
     desc "Generate .mobi file. The kindlegen executable must be in your PATH. You can get it for free from http://www.amazon.com/gp/feature.html?docId=1000765211"
     task :kindle do
-      unless `kindlerb -v 2> /dev/null` =~ /kindlerb 0.1.1/
+      unless `kindlerb -v 2> /dev/null` =~ /kindlerb 1.0.1/
         abort "Please `gem install kindlerb` and make sure you have `kindlegen` in your PATH"
       end
       unless `convert` =~ /convert/