diff --git a/Gemfile b/Gemfile
index 00cd64d..cc2eb1e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -36,7 +36,6 @@ group :production do
   # Autoprefixing for class
   gem 'autoprefixer-rails'
   gem 'htmlcompressor'
-  gem 'babel-transpiler'
 end
 
 group :nanoc do
diff --git a/Gemfile.lock b/Gemfile.lock
index b867f39..14fbc24 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,10 +7,6 @@ GEM
       rack (>= 1.0.0, < 3.0.0)
     autoprefixer-rails (8.5.0)
       execjs
-    babel-source (5.8.35)
-    babel-transpiler (0.7.0)
-      babel-source (>= 4.0, < 6)
-      execjs (~> 2.0)
     builder (3.2.3)
     coderay (1.1.2)
     coffee-script (2.4.1)
@@ -117,7 +113,6 @@ PLATFORMS
 DEPENDENCIES
   adsf
   autoprefixer-rails
-  babel-transpiler
   builder
   coffee-script
   guard-nanoc