diff --git a/packages/babel-core/package.json b/packages/babel-core/package.json
index b7f7576981..a73b183b16 100644
--- a/packages/babel-core/package.json
+++ b/packages/babel-core/package.json
@@ -32,7 +32,7 @@
     "babel-template": "7.0.0-alpha.9",
     "babel-traverse": "7.0.0-alpha.9",
     "babel-types": "7.0.0-alpha.9",
-    "babylon": "7.0.0-beta.8",
+    "babylon": "7.0.0-beta.10",
     "convert-source-map": "^1.1.0",
     "debug": "^2.1.1",
     "json5": "^0.5.0",
diff --git a/packages/babel-generator/src/generators/classes.js b/packages/babel-generator/src/generators/classes.js
index 64066a04cd..63cc938f96 100644
--- a/packages/babel-generator/src/generators/classes.js
+++ b/packages/babel-generator/src/generators/classes.js
@@ -1,5 +1,13 @@
-export function ClassDeclaration(node: Object) {
-  this.printJoin(node.decorators, node);
+import * as t from "babel-types";
+
+export function ClassDeclaration(node: Object, parent: Object) {
+  if (
+    !t.isExportDefaultDeclaration(parent) &&
+    !t.isExportNamedDeclaration(parent)
+  ) {
+    this.printJoin(node.decorators, node);
+  }
+
   this.word("class");
 
   if (node.id) {
diff --git a/packages/babel-generator/src/generators/modules.js b/packages/babel-generator/src/generators/modules.js
index 3d6fbae1e2..f5d33b151a 100644
--- a/packages/babel-generator/src/generators/modules.js
+++ b/packages/babel-generator/src/generators/modules.js
@@ -52,13 +52,21 @@ export function ExportAllDeclaration(node: Object) {
   this.semicolon();
 }
 
-export function ExportNamedDeclaration() {
+export function ExportNamedDeclaration(node: Object) {
+  if (t.isClassDeclaration(node.declaration)) {
+    this.printJoin(node.declaration.decorators, node);
+  }
+
   this.word("export");
   this.space();
   ExportDeclaration.apply(this, arguments);
 }
 
-export function ExportDefaultDeclaration() {
+export function ExportDefaultDeclaration(node: Object) {
+  if (t.isClassDeclaration(node.declaration)) {
+    this.printJoin(node.declaration.decorators, node);
+  }
+
   this.word("export");
   this.space();
   this.word("default");
diff --git a/packages/babel-generator/test/fixtures/flow/declare-statements/actual.js b/packages/babel-generator/test/fixtures/flow/declare-statements/actual.js
index 543efd048a..d5744cfdcc 100644
--- a/packages/babel-generator/test/fixtures/flow/declare-statements/actual.js
+++ b/packages/babel-generator/test/fixtures/flow/declare-statements/actual.js
@@ -9,6 +9,7 @@ declare class A<T> extends B<T> { x: number }
 declare class A { static foo(): number; static x : string }
 declare class A { static [ indexer: number]: string }
 declare class A { static () : number }
+declare class B { (): number }
 declare class A mixins B<T>, C {}
 declare type A = string
 declare type T<U> = { [k:string]: U }
diff --git a/packages/babel-generator/test/fixtures/flow/declare-statements/expected.js b/packages/babel-generator/test/fixtures/flow/declare-statements/expected.js
index 7498e25025..6f867c8eef 100644
--- a/packages/babel-generator/test/fixtures/flow/declare-statements/expected.js
+++ b/packages/babel-generator/test/fixtures/flow/declare-statements/expected.js
@@ -9,6 +9,7 @@ declare class A<T> extends B<T> { x: number }
 declare class A { static foo: () => number, static x: string, }
 declare class A { static [indexer: number]: string }
 declare class A { static (): number }
+declare class B { (): number }
 declare class A mixins B<T>, C {}
 declare type A = string;
 declare type T<U> = { [k: string]: U };
diff --git a/packages/babel-generator/test/fixtures/regression/babylon-317/actual.js b/packages/babel-generator/test/fixtures/regression/babylon-317/actual.js
new file mode 100644
index 0000000000..b2a6432b44
--- /dev/null
+++ b/packages/babel-generator/test/fixtures/regression/babylon-317/actual.js
@@ -0,0 +1 @@
+({ set = {} }) => set;
diff --git a/packages/babel-generator/test/fixtures/regression/babylon-317/expected.js b/packages/babel-generator/test/fixtures/regression/babylon-317/expected.js
new file mode 100644
index 0000000000..b2a6432b44
--- /dev/null
+++ b/packages/babel-generator/test/fixtures/regression/babylon-317/expected.js
@@ -0,0 +1 @@
+({ set = {} }) => set;
diff --git a/packages/babel-generator/test/fixtures/types/ClassBody-ClassProperty/actual.js b/packages/babel-generator/test/fixtures/types/ClassBody-ClassProperty/actual.js
index 25cd363323..41176ad01b 100644
--- a/packages/babel-generator/test/fixtures/types/ClassBody-ClassProperty/actual.js
+++ b/packages/babel-generator/test/fixtures/types/ClassBody-ClassProperty/actual.js
@@ -3,6 +3,7 @@ class Foo {
   foo = 1;
   "foo";
   "foo" = 1;
+  foo = super.foo();
   ["foo"];
   ["foo"] = 1;
   ["f" + "oo"];
@@ -12,8 +13,56 @@ class Foo {
   static foo = 1;
   static "foo";
   static "foo" = 1;
+  static foo = super.foo();
   static ["foo"];
   static ["foo"] = 1;
   static ["f" + "oo"];
   static ["f" + "oo"] = 1;
+
+  get;
+  set;
+  static;
+  static = 1;
+  async;
+  foo; bar;
+  foo = 0; bar = 1;
+}
+
+class A1 {
+  static
+  a
+  static
+}
+
+class A2 {
+  get
+  *a(){}
+}
+
+class A3 {
+  static
+  *a(){}
+}
+
+class A4 {
+  async
+  a(){}
+}
+
+class A5 {
+  static
+  async
+  a
+}
+
+class A6 {
+  get
+  ['a'](){}
+}
+
+class A7 {
+  static
+  get
+  static
+  (){}
 }
diff --git a/packages/babel-generator/test/fixtures/types/ClassBody-ClassProperty/expected.js b/packages/babel-generator/test/fixtures/types/ClassBody-ClassProperty/expected.js
index 25cd363323..53ba841703 100644
--- a/packages/babel-generator/test/fixtures/types/ClassBody-ClassProperty/expected.js
+++ b/packages/babel-generator/test/fixtures/types/ClassBody-ClassProperty/expected.js
@@ -3,6 +3,7 @@ class Foo {
   foo = 1;
   "foo";
   "foo" = 1;
+  foo = super.foo();
   ["foo"];
   ["foo"] = 1;
   ["f" + "oo"];
@@ -12,8 +13,49 @@ class Foo {
   static foo = 1;
   static "foo";
   static "foo" = 1;
+  static foo = super.foo();
   static ["foo"];
   static ["foo"] = 1;
   static ["f" + "oo"];
   static ["f" + "oo"] = 1;
+
+  get;
+  set;
+  static;
+  static = 1;
+  async;
+  foo;bar;
+  foo = 0;bar = 1;
+}
+
+class A1 {
+  static a;
+  static;
+}
+
+class A2 {
+  get;
+  *a() {}
+}
+
+class A3 {
+  static *a() {}
+}
+
+class A4 {
+  async;
+  a() {}
+}
+
+class A5 {
+  static async;
+  a;
+}
+
+class A6 {
+  get ['a']() {}
+}
+
+class A7 {
+  static get static() {}
 }
diff --git a/packages/babel-generator/test/fixtures/types/ClassBody-MethodDefinition/actual.js b/packages/babel-generator/test/fixtures/types/ClassBody-MethodDefinition/actual.js
index 1e431aa75b..bec3598e32 100644
--- a/packages/babel-generator/test/fixtures/types/ClassBody-MethodDefinition/actual.js
+++ b/packages/babel-generator/test/fixtures/types/ClassBody-MethodDefinition/actual.js
@@ -10,4 +10,46 @@ class Foo {
   static ["foo"]() {}
   static get foo() {}
   static set foo(bar) {}
+  static static() {}
+
+  get
+  () {}
+
+  set
+  () {}
+
+  static
+  () {}
+
+  async
+  () {}
+
+  static
+  get
+  () {}
+
+  static
+  set
+  () {}
+
+  static
+  static
+  () {}
+
+  static
+  async
+  () {}
+
+  static
+  a
+  () {}
+
+  get
+  async
+  () {}
+
+  static
+  get
+  static
+  () {}
 }
diff --git a/packages/babel-generator/test/fixtures/types/ClassBody-MethodDefinition/expected.js b/packages/babel-generator/test/fixtures/types/ClassBody-MethodDefinition/expected.js
index 1e431aa75b..e73bae2cbf 100644
--- a/packages/babel-generator/test/fixtures/types/ClassBody-MethodDefinition/expected.js
+++ b/packages/babel-generator/test/fixtures/types/ClassBody-MethodDefinition/expected.js
@@ -10,4 +10,27 @@ class Foo {
   static ["foo"]() {}
   static get foo() {}
   static set foo(bar) {}
+  static static() {}
+
+  get() {}
+
+  set() {}
+
+  static() {}
+
+  async() {}
+
+  static get() {}
+
+  static set() {}
+
+  static static() {}
+
+  static async() {}
+
+  static a() {}
+
+  get async() {}
+
+  static get static() {}
 }
diff --git a/packages/babel-generator/test/fixtures/types/Decorator/actual.js b/packages/babel-generator/test/fixtures/types/Decorator/actual.js
index d0b6d43621..f1946c7635 100644
--- a/packages/babel-generator/test/fixtures/types/Decorator/actual.js
+++ b/packages/babel-generator/test/fixtures/types/Decorator/actual.js
@@ -29,3 +29,17 @@ class Foo {
   @bar
   set bar(foo) {}
 }
+
+@foo
+export default class Foo {
+  bar() {
+    class Baz {}
+  }
+}
+
+@foo
+export class Foo {
+  bar() {
+    class Baz {}
+  }
+}
diff --git a/packages/babel-generator/test/fixtures/types/Decorator/expected.js b/packages/babel-generator/test/fixtures/types/Decorator/expected.js
index d0b6d43621..d47332b921 100644
--- a/packages/babel-generator/test/fixtures/types/Decorator/expected.js
+++ b/packages/babel-generator/test/fixtures/types/Decorator/expected.js
@@ -29,3 +29,17 @@ class Foo {
   @bar
   set bar(foo) {}
 }
+
+@foo
+export default class Foo {
+  bar() {
+    class Baz {}
+  }
+}
+
+@foo
+export class Foo {
+  bar() {
+    class Baz {}
+  }
+}
\ No newline at end of file
diff --git a/packages/babel-generator/test/fixtures/types/ExportDefaultDeclaration10/actual.js b/packages/babel-generator/test/fixtures/types/ExportDefaultDeclaration10/actual.js
new file mode 100644
index 0000000000..7c26b9ed68
--- /dev/null
+++ b/packages/babel-generator/test/fixtures/types/ExportDefaultDeclaration10/actual.js
@@ -0,0 +1 @@
+export async function foo() {}
diff --git a/packages/babel-generator/test/fixtures/types/ExportDefaultDeclaration10/expected.js b/packages/babel-generator/test/fixtures/types/ExportDefaultDeclaration10/expected.js
new file mode 100644
index 0000000000..bfb64da594
--- /dev/null
+++ b/packages/babel-generator/test/fixtures/types/ExportDefaultDeclaration10/expected.js
@@ -0,0 +1 @@
+export async function foo() {}
\ No newline at end of file
diff --git a/packages/babel-generator/test/fixtures/types/ExportDefaultDeclaration11/actual.js b/packages/babel-generator/test/fixtures/types/ExportDefaultDeclaration11/actual.js
new file mode 100644
index 0000000000..b5d8066db5
--- /dev/null
+++ b/packages/babel-generator/test/fixtures/types/ExportDefaultDeclaration11/actual.js
@@ -0,0 +1 @@
+export default async () => await foo()
diff --git a/packages/babel-generator/test/fixtures/types/ExportDefaultDeclaration11/expected.js b/packages/babel-generator/test/fixtures/types/ExportDefaultDeclaration11/expected.js
new file mode 100644
index 0000000000..3bec97976a
--- /dev/null
+++ b/packages/babel-generator/test/fixtures/types/ExportDefaultDeclaration11/expected.js
@@ -0,0 +1 @@
+export default (async () => await foo());
\ No newline at end of file
diff --git a/packages/babel-generator/test/fixtures/types/ExportDefaultDeclaration9/actual.js b/packages/babel-generator/test/fixtures/types/ExportDefaultDeclaration9/actual.js
new file mode 100644
index 0000000000..8db00b63ab
--- /dev/null
+++ b/packages/babel-generator/test/fixtures/types/ExportDefaultDeclaration9/actual.js
@@ -0,0 +1 @@
+export default async function bar() {}
diff --git a/packages/babel-generator/test/fixtures/types/ExportDefaultDeclaration9/expected.js b/packages/babel-generator/test/fixtures/types/ExportDefaultDeclaration9/expected.js
new file mode 100644
index 0000000000..f3288c7d18
--- /dev/null
+++ b/packages/babel-generator/test/fixtures/types/ExportDefaultDeclaration9/expected.js
@@ -0,0 +1 @@
+export default async function bar() {}
\ No newline at end of file
diff --git a/packages/babel-generator/test/fixtures/types/ExportSpecifier16/actual.js b/packages/babel-generator/test/fixtures/types/ExportSpecifier16/actual.js
new file mode 100644
index 0000000000..871cd28fa8
--- /dev/null
+++ b/packages/babel-generator/test/fixtures/types/ExportSpecifier16/actual.js
@@ -0,0 +1 @@
+export * as default from "foo";
diff --git a/packages/babel-generator/test/fixtures/types/ExportSpecifier16/expected.js b/packages/babel-generator/test/fixtures/types/ExportSpecifier16/expected.js
new file mode 100644
index 0000000000..093e9ba5f1
--- /dev/null
+++ b/packages/babel-generator/test/fixtures/types/ExportSpecifier16/expected.js
@@ -0,0 +1 @@
+export * as default from "foo";
\ No newline at end of file
diff --git a/packages/babel-generator/test/fixtures/types/Literal/actual.js b/packages/babel-generator/test/fixtures/types/Literal/actual.js
index 6bd9f84a96..8c4a774d6d 100644
--- a/packages/babel-generator/test/fixtures/types/Literal/actual.js
+++ b/packages/babel-generator/test/fixtures/types/Literal/actual.js
@@ -10,3 +10,4 @@ false;
 0b10;
 0o70;
 0X1F;
+-0b1111011;
diff --git a/packages/babel-generator/test/fixtures/types/Literal/expected.js b/packages/babel-generator/test/fixtures/types/Literal/expected.js
index 6bd9f84a96..8c4a774d6d 100644
--- a/packages/babel-generator/test/fixtures/types/Literal/expected.js
+++ b/packages/babel-generator/test/fixtures/types/Literal/expected.js
@@ -10,3 +10,4 @@ false;
 0b10;
 0o70;
 0X1F;
+-0b1111011;
diff --git a/packages/babel-generator/test/fixtures/types/RestProperty/actual.js b/packages/babel-generator/test/fixtures/types/RestProperty/actual.js
new file mode 100644
index 0000000000..af90a6ba00
--- /dev/null
+++ b/packages/babel-generator/test/fixtures/types/RestProperty/actual.js
@@ -0,0 +1,3 @@
+var { ...{ z } } = { z: 1 };
+var { ...{ x = 5 } } = { x : 1 };
+({ x, ...{ y, z } } = o);
diff --git a/packages/babel-generator/test/fixtures/types/RestProperty/expected.js b/packages/babel-generator/test/fixtures/types/RestProperty/expected.js
new file mode 100644
index 0000000000..a85216576d
--- /dev/null
+++ b/packages/babel-generator/test/fixtures/types/RestProperty/expected.js
@@ -0,0 +1,3 @@
+var { ...{ z } } = { z: 1 };
+var { ...{ x = 5 } } = { x: 1 };
+({ x, ...{ y, z } } = o);
\ No newline at end of file
diff --git a/packages/babel-plugin-transform-class-properties/test/fixtures/spec/super-call/actual.js b/packages/babel-plugin-transform-class-properties/test/fixtures/spec/super-call/actual.js
new file mode 100644
index 0000000000..175fc704e7
--- /dev/null
+++ b/packages/babel-plugin-transform-class-properties/test/fixtures/spec/super-call/actual.js
@@ -0,0 +1,9 @@
+class A {
+  foo() {
+    return "bar";
+  }
+}
+
+class B extends A {
+  foo = super.foo();
+}
diff --git a/packages/babel-plugin-transform-class-properties/test/fixtures/spec/super-call/expected.js b/packages/babel-plugin-transform-class-properties/test/fixtures/spec/super-call/expected.js
new file mode 100644
index 0000000000..8ed2311f3d
--- /dev/null
+++ b/packages/babel-plugin-transform-class-properties/test/fixtures/spec/super-call/expected.js
@@ -0,0 +1,30 @@
+var A = function () {
+  function A() {
+    babelHelpers.classCallCheck(this, A);
+  }
+
+  babelHelpers.createClass(A, [{
+    key: "foo",
+    value: function foo() {
+      return "bar";
+    }
+  }]);
+  return A;
+}();
+
+var B = function (_A) {
+  babelHelpers.inherits(B, _A);
+
+  function B(...args) {
+    var _temp, _this, _ret;
+
+    babelHelpers.classCallCheck(this, B);
+    return _ret = (_temp = (_this = babelHelpers.possibleConstructorReturn(this, (B.__proto__ || Object.getPrototypeOf(B)).call(this, ...args)), _this), Object.defineProperty(_this, "foo", {
+      enumerable: true,
+      writable: true,
+      value: babelHelpers.get(B.prototype.__proto__ || Object.getPrototypeOf(B.prototype), "foo", _this).call(_this)
+    }), _temp), babelHelpers.possibleConstructorReturn(_this, _ret);
+  }
+
+  return B;
+}(A);
\ No newline at end of file
diff --git a/packages/babel-plugin-transform-decorators/test/fixtures/class-export-default/exec.js b/packages/babel-plugin-transform-decorators/test/fixtures/class-export-default/exec.js
new file mode 100644
index 0000000000..542f0e00c4
--- /dev/null
+++ b/packages/babel-plugin-transform-decorators/test/fixtures/class-export-default/exec.js
@@ -0,0 +1,14 @@
+const calls = [];
+
+function foo(target) {
+  calls.push(target.name);
+}
+
+@foo
+export default class Foo {
+  bar() {
+    class Baz {}
+  }
+}
+
+assert.deepEqual(calls, ["Foo"]);
diff --git a/packages/babel-plugin-transform-es2015-destructuring/test/fixtures/destructuring/es7-object-rest/actual.js b/packages/babel-plugin-transform-es2015-destructuring/test/fixtures/destructuring/es7-object-rest/actual.js
index a0fd177921..44903552ea 100644
--- a/packages/babel-plugin-transform-es2015-destructuring/test/fixtures/destructuring/es7-object-rest/actual.js
+++ b/packages/babel-plugin-transform-es2015-destructuring/test/fixtures/destructuring/es7-object-rest/actual.js
@@ -2,4 +2,6 @@ var z = {};
 var { ...x } = z;
 var { x, ...y } = z;
 var { [x]: x, ...y } = z;
-(function({ x, ...y }) { })
+(function({ x, ...y }) { });
+
+({ x, ...{ y, z } } = o);
diff --git a/packages/babel-plugin-transform-es2015-destructuring/test/fixtures/destructuring/es7-object-rest/expected.js b/packages/babel-plugin-transform-es2015-destructuring/test/fixtures/destructuring/es7-object-rest/expected.js
index 7fa15501b2..62e912f6ad 100644
--- a/packages/babel-plugin-transform-es2015-destructuring/test/fixtures/destructuring/es7-object-rest/expected.js
+++ b/packages/babel-plugin-transform-es2015-destructuring/test/fixtures/destructuring/es7-object-rest/expected.js
@@ -1,11 +1,23 @@
 var z = {};
-var x = babelHelpers.objectWithoutProperties(z, []);
-var x = z.x,
-    y = babelHelpers.objectWithoutProperties(z, ["x"]);
-var x = z[x],
-    y = babelHelpers.objectWithoutProperties(z, [x]);
+var _z = z,
+    x = babelHelpers.objectWithoutProperties(_z, []);
+var _z2 = z,
+    x = _z2.x,
+    y = babelHelpers.objectWithoutProperties(_z2, ["x"]);
+var _z3 = z,
+    x = _z3[x],
+    y = babelHelpers.objectWithoutProperties(_z3, [x]);
 
 (function (_ref) {
   var x = _ref.x,
       y = babelHelpers.objectWithoutProperties(_ref, ["x"]);
 });
+
+var _o = o;
+x = _o.x;
+
+var _babelHelpers$objectW = babelHelpers.objectWithoutProperties(_o, ["x"]);
+
+y = _babelHelpers$objectW.y;
+z = _babelHelpers$objectW.z;
+_o;
\ No newline at end of file
diff --git a/packages/babel-plugin-transform-export-extensions/test/fixtures/export-extensions/namespace-default/actual.js b/packages/babel-plugin-transform-export-extensions/test/fixtures/export-extensions/namespace-default/actual.js
new file mode 100644
index 0000000000..871cd28fa8
--- /dev/null
+++ b/packages/babel-plugin-transform-export-extensions/test/fixtures/export-extensions/namespace-default/actual.js
@@ -0,0 +1 @@
+export * as default from "foo";
diff --git a/packages/babel-plugin-transform-export-extensions/test/fixtures/export-extensions/namespace-default/expected.js b/packages/babel-plugin-transform-export-extensions/test/fixtures/export-extensions/namespace-default/expected.js
new file mode 100644
index 0000000000..f5334b455c
--- /dev/null
+++ b/packages/babel-plugin-transform-export-extensions/test/fixtures/export-extensions/namespace-default/expected.js
@@ -0,0 +1,2 @@
+import * as _default from "foo";
+export { _default as default };
\ No newline at end of file
diff --git a/packages/babel-plugin-transform-export-extensions/test/fixtures/export-extensions/namespace-default/options.json b/packages/babel-plugin-transform-export-extensions/test/fixtures/export-extensions/namespace-default/options.json
new file mode 100644
index 0000000000..26dfe134f4
--- /dev/null
+++ b/packages/babel-plugin-transform-export-extensions/test/fixtures/export-extensions/namespace-default/options.json
@@ -0,0 +1,3 @@
+{
+  "plugins": ["external-helpers", "transform-export-extensions"]
+}
diff --git a/packages/babel-plugin-transform-object-rest-spread/test/fixtures/object-rest/variable-destructuring/actual.js b/packages/babel-plugin-transform-object-rest-spread/test/fixtures/object-rest/variable-destructuring/actual.js
index 6eed55d739..a8e761d5c9 100644
--- a/packages/babel-plugin-transform-object-rest-spread/test/fixtures/object-rest/variable-destructuring/actual.js
+++ b/packages/babel-plugin-transform-object-rest-spread/test/fixtures/object-rest/variable-destructuring/actual.js
@@ -17,3 +17,6 @@ let {
 } = complex;
 
 let { x4: { ...y4 } } = z;
+
+var { ...{ z } } = { z: 1 };
+var { ...{ x = 5 } } = { x : 1 };
diff --git a/packages/babel-plugin-transform-object-rest-spread/test/fixtures/object-rest/variable-destructuring/expected.js b/packages/babel-plugin-transform-object-rest-spread/test/fixtures/object-rest/variable-destructuring/expected.js
index b9b3cfe2d3..2d4f70f8c1 100644
--- a/packages/babel-plugin-transform-object-rest-spread/test/fixtures/object-rest/variable-destructuring/expected.js
+++ b/packages/babel-plugin-transform-object-rest-spread/test/fixtures/object-rest/variable-destructuring/expected.js
@@ -24,3 +24,6 @@ let {
 
 let {} = z,
     y4 = babelHelpers.objectWithoutProperties(z.x4, []);
+
+var { z } = babelHelpers.objectWithoutProperties({ z: 1 }, []);
+var { x = 5 } = babelHelpers.objectWithoutProperties({ x: 1 }, []);
\ No newline at end of file
diff --git a/packages/babel-template/package.json b/packages/babel-template/package.json
index 105a88749c..16735ba59a 100644
--- a/packages/babel-template/package.json
+++ b/packages/babel-template/package.json
@@ -8,7 +8,7 @@
   "repository": "https://github.com/babel/babel/tree/master/packages/babel-template",
   "main": "lib/index.js",
   "dependencies": {
-    "babylon": "7.0.0-beta.8",
+    "babylon": "7.0.0-beta.10",
     "babel-traverse": "7.0.0-alpha.9",
     "babel-types": "7.0.0-alpha.9",
     "lodash": "^4.2.0"
diff --git a/packages/babel-traverse/package.json b/packages/babel-traverse/package.json
index cd777cd3ed..054d35dce0 100644
--- a/packages/babel-traverse/package.json
+++ b/packages/babel-traverse/package.json
@@ -12,7 +12,7 @@
     "babel-helper-function-name": "7.0.0-alpha.7",
     "babel-messages": "7.0.0-alpha.9",
     "babel-types": "7.0.0-alpha.9",
-    "babylon": "7.0.0-beta.8",
+    "babylon": "7.0.0-beta.10",
     "debug": "^2.2.0",
     "globals": "^9.0.0",
     "invariant": "^2.2.0",