diff --git a/package.json b/package.json
index 21bb76046..a346b6831 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "escape-string-regexp": "1.0.5",
     "esutils": "2.0.2",
     "find-project-root": "1.1.1",
-    "flow-parser": "0.69",
+    "flow-parser": "0.70",
     "get-stream": "3.0.0",
     "globby": "6.1.0",
     "graphql": "0.13.2",
diff --git a/tests/flow/traits/__snapshots__/jsfmt.spec.js.snap b/tests/flow/traits/__snapshots__/jsfmt.spec.js.snap
index 1808e48e2..ccf8d2002 100644
--- a/tests/flow/traits/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/flow/traits/__snapshots__/jsfmt.spec.js.snap
@@ -22,7 +22,7 @@ declare class Baz<T> {
 ((new Foo).y: string); // error: Bar wins
 ((new Foo).z: number); // error: Qux wins
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-declare class Foo extends Qux<string> {
+declare class Foo extends Qux<string> mixins Bar<number> {
   // KeyedCollection <: Collection
   // ...KeyedIterable
 }
@@ -51,6 +51,6 @@ declare interface I { }
 declare class C mixins I { }
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 declare interface I {}
-declare class C {}
+declare class C mixins I {}
 
 `;
diff --git a/tests/flow_implements/__snapshots__/jsfmt.spec.js.snap b/tests/flow_implements/__snapshots__/jsfmt.spec.js.snap
new file mode 100644
index 000000000..5c7ba9f8c
--- /dev/null
+++ b/tests/flow_implements/__snapshots__/jsfmt.spec.js.snap
@@ -0,0 +1,16 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`implements.js 1`] = `
+class A implements B {}
+class A implements B, C {}
+declare class A implements B {}
+declare class A mixins B implements C {}
+declare class A implements B, C {}
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+class A implements B {}
+class A implements B, C {}
+declare class A implements B {}
+declare class A implements C mixins B {}
+declare class A implements B, C {}
+
+`;
diff --git a/tests/flow_implements/implements.js b/tests/flow_implements/implements.js
new file mode 100644
index 000000000..32acd7162
--- /dev/null
+++ b/tests/flow_implements/implements.js
@@ -0,0 +1,5 @@
+class A implements B {}
+class A implements B, C {}
+declare class A implements B {}
+declare class A mixins B implements C {}
+declare class A implements B, C {}
diff --git a/tests/flow_implements/jsfmt.spec.js b/tests/flow_implements/jsfmt.spec.js
new file mode 100644
index 000000000..b9a908981
--- /dev/null
+++ b/tests/flow_implements/jsfmt.spec.js
@@ -0,0 +1 @@
+run_spec(__dirname, ["flow"]);
diff --git a/tests/flow_mixins/jsfmt.spec.js b/tests/flow_mixins/jsfmt.spec.js
index 968651cdb..bffb7a547 100644
--- a/tests/flow_mixins/jsfmt.spec.js
+++ b/tests/flow_mixins/jsfmt.spec.js
@@ -1 +1 @@
-run_spec(__dirname, ["babylon"]);
+run_spec(__dirname, ["babylon", "flow"]);
diff --git a/yarn.lock b/yarn.lock
index c41b7e419..b0c3e3a69 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1971,9 +1971,9 @@ flatten@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/flatten/-/flatten-1.0.2.tgz#dae46a9d78fbe25292258cc1e780a41d95c03782"
 
-flow-parser@0.69:
-  version "0.69.0"
-  resolved "https://registry.yarnpkg.com/flow-parser/-/flow-parser-0.69.0.tgz#378b5128d6d0b554a8b2f16a4ca3e1ab9649f00e"
+flow-parser@0.70:
+  version "0.70.0"
+  resolved "https://registry.yarnpkg.com/flow-parser/-/flow-parser-0.70.0.tgz#9c310187efe4380ba9a251284e9b83b95c49e857"
 
 for-in@^1.0.1:
   version "1.0.2"