diff --git a/package.json b/package.json
index 303d758fd..517ff5559 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,6 @@
   "license": "MIT",
   "main": "./index.js",
   "dependencies": {
-    "ast-types": "0.9.8",
     "babel-code-frame": "6.22.0",
     "babylon": "7.0.0-beta.10",
     "chalk": "1.1.3",
diff --git a/src/ast-types.js b/src/ast-types.js
deleted file mode 100644
index e6f8d7dda..000000000
--- a/src/ast-types.js
+++ /dev/null
@@ -1,20 +0,0 @@
-"use strict";
-
-module.exports = require("ast-types/fork")([
-  // This core module of AST types captures ES5 as it is parsed today by
-  // git://github.com/ariya/esprima.git#master.
-  require("ast-types/def/core"),
-
-  // Feel free to add to or remove from this list of extension modules to
-  // configure the precise type hierarchy that you need.
-  require("ast-types/def/es6"),
-  require("ast-types/def/es7"),
-  require("ast-types/def/mozilla"),
-  require("ast-types/def/e4x"),
-  require("ast-types/def/jsx"),
-  require("ast-types/def/flow"),
-  require("ast-types/def/esprima"),
-  require("ast-types/def/babel"),
-  require("ast-types/def/babel6"),
-  require("./typescript-ast-nodes.js")
-]);
diff --git a/src/typescript-ast-nodes.js b/src/typescript-ast-nodes.js
deleted file mode 100644
index cd9fedb15..000000000
--- a/src/typescript-ast-nodes.js
+++ /dev/null
@@ -1,226 +0,0 @@
-"use strict";
-
-module.exports = function(fork) {
-  fork.use(require("ast-types/def/es7"));
-
-  const types = fork.use(require("ast-types/lib/types"));
-  const def = types.Type.def;
-  const or = types.Type.or;
-  const defaults = fork.use(require("ast-types/lib/shared")).defaults;
-
-  // Putting it here while it's being merged upstream
-  // https://github.com/benjamn/ast-types/pull/221
-  def("ObjectTypeSpreadProperty")
-    .bases("Node")
-    .build("argument")
-    .field("argument", def("Type"));
-
-  // Ambient
-  def("TSAmbientVariableDefinition").bases("VariableDeclaration");
-
-  def("TSInterfaceDeclaration")
-    .bases("Declaration")
-    .build("name", "typeParameters", "members")
-    .field("name", def("Identifier"))
-    .field(
-      "typeParameters",
-      or(def("TypeParameterDeclaration"), null),
-      defaults["null"]
-    )
-    .field("members", [def("TSSignature")]);
-
-  def("TSKeyword").bases("Node");
-
-  def("TSType").bases("Node");
-
-  def("TSTupleType")
-    .build("elementTypes")
-    .field("elementTypes", [def("TSType")])
-    .bases("Node");
-
-  def("TSArrayType")
-    .build("elementType")
-    .field("elementType", def("TSType"))
-    .bases("Node");
-
-  def("TSQualifiedName")
-    .build("left", "right")
-    .field("left", def("TSType"))
-    .field("right", def("TSType"))
-    .bases("Node");
-
-  def("TypeElement").bases("Node");
-
-  def("TSSignature")
-    .bases("TypeElement")
-    .build("typeParameters", "parameters", "typeAnnotation")
-    .field(
-      "typeParameters",
-      or(def("TypeParameterDeclaration"), null),
-      defaults["null"]
-    )
-    .field("parameters", [def("Identifier")])
-    .field("typeAnnotation", def("TSType"));
-
-  def("TSAnyKeyword").bases("TSKeyword");
-
-  def("TSBooleanKeyword").bases("TSKeyword");
-
-  def("TSNeverKeyword").bases("TSKeyword");
-
-  def("TSNumberKeyword").bases("TSKeyword");
-
-  def("TSObjectKeyword").bases("TSKeyword");
-
-  def("TSReadonlyKeyword").bases("TSKeyword");
-
-  def("TSStringKeyword").bases("TSKeyword");
-
-  def("TSSymbolKeyword").bases("TSKeyword");
-
-  def("TSUndefinedKeyword").bases("TSKeyword");
-
-  def("TSVoidKeyword").bases("TSKeyword");
-
-  // Types
-  def("TSConstructorType").bases("TSType");
-
-  def("TSFunctionType")
-    .bases("TSSignature")
-    .build("parameters", "typeAnnotation", "typeParameters");
-
-  def("TSIntersectionType")
-    .bases("TSType")
-    .build("types")
-    .field("types", [def("TSType")]);
-
-  def("TSParenthesizedType").bases("TSType");
-
-  def("TSThisType").bases("TSType");
-
-  def("TSUnionType")
-    .bases("TSType")
-    .build("types")
-    .field("types", [def("TSType")]);
-
-  def("TSTypeLiteral")
-    .bases("TSType")
-    .build("members")
-    .field("members", [def("TSSignature")]);
-
-  def("TSTypeOperator").bases("TSType");
-
-  def("TSTypeReference")
-    .bases("TSType")
-    .build("typeName", "typeParameters")
-    .field("typeName", def("Identifier"))
-    .field("typeParameters", def("TSType"));
-
-  def("TSFirstTypeNode")
-    .bases("Node")
-    .build("id", "typeAnnotation")
-    .field("id", def("Identifier"))
-    .field("typeAnnotation", def("TSType"));
-
-  // Signatures
-  def("TSCallSignature")
-    .bases("TSSignature")
-    .build("typeParameters", "parameters", "typeAnnotation");
-
-  def("TSConstructSignature")
-    .bases("TSSignature")
-    .build("typeParameters", "parameters", "typeAnnotation");
-
-  def("TSIndexSignature")
-    .bases("TSSignature")
-    .build("typeParameters", "parameters", "typeAnnotation");
-
-  def("TSMethodSignature")
-    .bases("TSSignature")
-    .build("name", "typeParameters", "parameters", "typeAnnotation")
-    .field("name", def("Identifier"));
-
-  def("TSPropertySignature")
-    .build("modifiers", "name", "questionToken", "typeAnnotation")
-    .field("name", def("Identifier"))
-    .field("typeAnnotation", def("TypeAnnotation"))
-    .bases("TSSignature");
-
-  def("TSAsExpression")
-    .build("expression")
-    .field("expression", def("Node"))
-    .bases("Expression");
-
-  def("TSNamespaceExportDeclaration")
-    .bases("Declaration")
-    // needs more like `modefiers` and `decorators`
-    .build("name");
-
-  def("TSEnumDeclaration")
-    .bases("Declaration")
-    .build("name", "members")
-    .field("name", def("Identifier"));
-
-  def("TSEnumMember").build("name").field("name", def("Identifier"));
-
-  def("TSImportEqualsDeclaration")
-    .build("name", "moduleReference")
-    .build("expression")
-    .field("name", def("Identifier"))
-    .field("moduleReference", def("TSExternalModuleReference"))
-    .field("expression", def("Literal"))
-    .bases("Declaration");
-
-  def("TSNamespaceFunctionDeclaration")
-    .build("id", "body")
-    .field("id", def("Identifier"))
-    .field("body", def("BlockStatement"))
-    .bases("Declaration");
-
-  def("TSInterfaceDeclaration")
-    .build("body", "heritage", "id")
-    .field("body", def("TSInterfaceBody"))
-    .field("heritage", def("TSHeritageClause"))
-    .field("id", def("Identifier"))
-    .bases("Node");
-
-  def("TSInterfaceBody")
-    .build("body")
-    .field("body", [def("TSPropertySignature")])
-    .bases("Node");
-
-  def("TSModuleDeclaration")
-    .build("modifiers", "name", "body")
-    .bases("Declaration")
-    .field("name", or(def("Identifier"), def("Literal")));
-
-  def("TSDeclareKeyword").build();
-
-  def("TSModuleBlock").build("body").bases("Node");
-
-  def("TSAbstractMethodDefinition").build().bases("Node");
-
-  def("TSAbstractClassProperty").build("key", "value").bases("Node");
-
-  def("TSAbstractClassDeclaration").build().bases("ClassDeclaration");
-
-  def("TSInterfaceHeritage")
-    .build("id", "typeParameters")
-    .field("id", def("Identifier"))
-    .field("typeParameters", def("TSType"));
-
-  def("TSDecorator")
-    .build("expression")
-    .field("expression", def("Identifier"))
-    .bases("Node");
-
-  def("TSTypeParameter").build("name").field("name", def("Identifier"));
-
-  def("TSParameterProperty").build("accessibility", "isReadonly", "parameters");
-
-  def("TSTypeAssertionExpression")
-    .build("expression", "typeAnnotation")
-    .field("expression", def("Identifier"))
-    .field("typeAnnotation", def("TSType"))
-    .bases("Expression");
-};