diff --git a/package.json b/package.json
index 7a60479b..029f10d8 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
   "main": "./index.js",
   "dependencies": {
     "babel-code-frame": "7.0.0-alpha.12",
-    "babylon": "7.0.0-beta.10",
+    "babylon": "7.0.0-beta.14",
     "chalk": "1.1.3",
     "diff": "3.2.0",
     "esutils": "2.0.2",
diff --git a/src/parser-babylon.js b/src/parser-babylon.js
index 98c2a241..8a7be5de 100644
--- a/src/parser-babylon.js
+++ b/src/parser-babylon.js
@@ -21,7 +21,8 @@ function parse(text) {
       "asyncGenerators",
       "functionBind",
       "functionSent",
-      "dynamicImport"
+      "dynamicImport",
+      "numericSeparator"
     ]
   };
 
diff --git a/tests/flow_jsx/__snapshots__/jsfmt.spec.js.snap b/tests/flow_jsx/__snapshots__/jsfmt.spec.js.snap
new file mode 100644
index 00000000..ec0cc79f
--- /dev/null
+++ b/tests/flow_jsx/__snapshots__/jsfmt.spec.js.snap
@@ -0,0 +1,8 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`func_inside_attr.js 1`] = `
+<bar x={function (x): Array<string> {}} />
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+<bar x={function(x): Array<string> {}} />;
+
+`;
diff --git a/tests/flow_jsx/func_inside_attr.js b/tests/flow_jsx/func_inside_attr.js
new file mode 100644
index 00000000..c38d33f8
--- /dev/null
+++ b/tests/flow_jsx/func_inside_attr.js
@@ -0,0 +1 @@
+<bar x={function (x): Array<string> {}} />
diff --git a/tests/flow_jsx/jsfmt.spec.js b/tests/flow_jsx/jsfmt.spec.js
new file mode 100644
index 00000000..1840e9d3
--- /dev/null
+++ b/tests/flow_jsx/jsfmt.spec.js
@@ -0,0 +1 @@
+run_spec(__dirname, null, ["babylon"]);
diff --git a/tests/literal-numeric-separator/__snapshots__/jsfmt.spec.js.snap b/tests/literal-numeric-separator/__snapshots__/jsfmt.spec.js.snap
new file mode 100644
index 00000000..248d45e2
--- /dev/null
+++ b/tests/literal-numeric-separator/__snapshots__/jsfmt.spec.js.snap
@@ -0,0 +1,30 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`test.js 1`] = `
+1_1
+1_1.1_1
+0o1_1
+0o0_11
+1.1_0_1e1
+1.1_0_1E1
+.1_1
+0x1_1
+0xa_1
+0xA_1
+0b01_1
+0b0_1_1
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+1_1;
+1_1.1_1;
+0o1_1;
+0o0_11;
+1.1_0_1e1;
+1.1_0_1e1;
+0.1_1;
+0x1_1;
+0xa_1;
+0xa_1;
+0b01_1;
+0b0_1_1;
+
+`;
diff --git a/tests/literal-numeric-separator/jsfmt.spec.js b/tests/literal-numeric-separator/jsfmt.spec.js
new file mode 100644
index 00000000..f974ed6c
--- /dev/null
+++ b/tests/literal-numeric-separator/jsfmt.spec.js
@@ -0,0 +1 @@
+run_spec(__dirname, { parser: "babylon" });
diff --git a/tests/literal-numeric-separator/test.js b/tests/literal-numeric-separator/test.js
new file mode 100644
index 00000000..203524f4
--- /dev/null
+++ b/tests/literal-numeric-separator/test.js
@@ -0,0 +1,12 @@
+1_1
+1_1.1_1
+0o1_1
+0o0_11
+1.1_0_1e1
+1.1_0_1E1
+.1_1
+0x1_1
+0xa_1
+0xA_1
+0b01_1
+0b0_1_1
diff --git a/yarn.lock b/yarn.lock
index ec8fcbd2..43bc39e8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -656,9 +656,9 @@ babel-types@^6.18.0, babel-types@^6.19.0, babel-types@^6.24.1, babel-types@^6.25
     lodash "^4.2.0"
     to-fast-properties "^1.0.1"
 
-babylon@7.0.0-beta.10:
-  version "7.0.0-beta.10"
-  resolved "https://registry.yarnpkg.com/babylon/-/babylon-7.0.0-beta.10.tgz#07a210ea6a4480c9581794403907a6c72abc607c"
+babylon@7.0.0-beta.14:
+  version "7.0.0-beta.14"
+  resolved "https://registry.yarnpkg.com/babylon/-/babylon-7.0.0-beta.14.tgz#72aa3c493c984c2edc54d4bc077b74066ed4511d"
 
 babylon@^6.13.0, babylon@^6.17.2:
   version "6.17.3"