diff --git a/Gemfile b/Gemfile
index 5cffa95..e453faa 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,4 +12,4 @@ platforms :windows, :jruby do
   gem "tzinfo-data"
 end
 gem "wdm", ">= 0.1.1", :platforms => [:windows]
-gem 'diff-lcs', '~> 1.6', '>= 1.6.2'
\ No newline at end of file
+gem 'diff-lcs', '~> 2.0'
\ No newline at end of file
diff --git a/Gemfile.lock b/Gemfile.lock
index bd21e16..6106752 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,7 +13,7 @@ GEM
     colorator (1.1.0)
     concurrent-ruby (1.3.5)
     csv (3.3.5)
-    diff-lcs (1.6.2)
+    diff-lcs (2.0.0)
     em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0)
@@ -109,7 +109,7 @@ PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
-  diff-lcs (~> 1.6, >= 1.6.2)
+  diff-lcs (~> 2.0)
   jekyll (~> 4.4.1)
   jekyll-sass-converter (~> 3.1.0)
   just-the-docs (= 0.10.1)