diff --git a/Gemfile b/Gemfile
index 51625d4..d54e27e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,4 +3,4 @@ source "https://rubygems.org"
 gem "uglifier", "~> 2.7.2"
 gem "coffee-script", "~> 2.2.0"
 
-gem "rake"
+gem "rake", ">= 12.3.3"
diff --git a/Gemfile.lock b/Gemfile.lock
index b481532..f16305d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,7 +7,7 @@ GEM
     coffee-script-source (1.3.3)
     execjs (2.7.0)
     json (2.1.0)
-    rake (0.9.2.2)
+    rake (13.0.1)
     uglifier (2.7.2)
       execjs (>= 0.3.0)
       json (>= 1.8.0)
@@ -17,8 +17,8 @@ PLATFORMS
 
 DEPENDENCIES
   coffee-script (~> 2.2.0)
-  rake
+  rake (>= 12.3.3)
   uglifier (~> 2.7.2)
 
 BUNDLED WITH
-   1.16.1
+   1.17.3