diff --git a/Gemfile b/Gemfile
index e0d9f97..b3b5b2b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,7 @@ source :gemcutter
 gem 'builder', '3.0.0'
 gem 'sinatra', '1.3.2'
 gem 'async_sinatra', '1.0.0'
-gem 'haml', '3.1.1'
+gem 'haml', '5.0.0'
 gem 'rake', '0.9.0'
 gem 'thin', '1.2.11'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 79ae078..a6efbd3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,7 +7,9 @@ GEM
     builder (3.0.0)
     daemons (1.1.8)
     eventmachine (0.12.10)
-    haml (3.1.1)
+    haml (5.0.0)
+      temple (>= 0.8.0)
+      tilt
     rack (1.4.1)
     rack-protection (1.2.0)
       rack
@@ -16,6 +18,7 @@ GEM
       rack (~> 1.3, >= 1.3.6)
       rack-protection (~> 1.2)
       tilt (~> 1.3, >= 1.3.3)
+    temple (0.8.2)
     thin (1.2.11)
       daemons (>= 1.0.9)
       eventmachine (>= 0.12.6)
@@ -28,7 +31,7 @@ PLATFORMS
 DEPENDENCIES
   async_sinatra (= 1.0.0)
   builder (= 3.0.0)
-  haml (= 3.1.1)
+  haml (= 5.0.0)
   rake (= 0.9.0)
   sinatra (= 1.3.2)
   thin (= 1.2.11)