diff --git a/Gemfile b/Gemfile
index c6cbc05..2f91b8c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,9 +5,8 @@ gem "rake"
 gem "soml-parser" , :path => "."
 
 # use this for debugging, the printout is better (cut/paste)
- gem "ast" #, :github => "dancinglightning/ast" , :branch => :new_inspect
-#gem "ast"
-
+gem "ast" , :github => "dancinglightning/ast"
+ 
 # Add dependencies to develop your gem here.
 # Include everything needed to run rake, tests, features, etc.
 group :development do
diff --git a/Gemfile.lock b/Gemfile.lock
index e5c2d24..426e4b4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,3 +1,9 @@
+GIT
+  remote: git://github.com/dancinglightning/ast.git
+  revision: 3814fb102af82a30bf334005ebe17332744f9dad
+  specs:
+    ast (2.1.0)
+
 PATH
   remote: .
   specs:
@@ -8,7 +14,6 @@ PATH
 GEM
   remote: http://rubygems.org/
   specs:
-    ast (2.1.0)
     blankslate (3.1.3)
     codeclimate-test-reporter (0.4.6)
       simplecov (>= 0.7.1, < 1.0.0)
@@ -28,11 +33,11 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  ast
+  ast!
   codeclimate-test-reporter
   minitest
   rake
   soml-parser!
 
 BUNDLED WITH
-   1.10.6
+   1.13.5