diff --git a/.flowconfig b/.flowconfig
index 6a4c6cebe8..eadb7a6d16 100644
--- a/.flowconfig
+++ b/.flowconfig
@@ -16,4 +16,4 @@ suppress_comment= \\(.\\|\n\\)*\\$FlowFixMe
 unsafe.enable_getters_and_setters=true
 
 [version]
-^0.48.0
+^0.49.1
diff --git a/package.json b/package.json
index fa1f616cf2..151165a6c5 100644
--- a/package.json
+++ b/package.json
@@ -64,7 +64,7 @@
     "eslint-plugin-react": "^6.7.1",
     "eslint-plugin-yarn-internal": "file:scripts/eslint-rules",
     "execa": "^0.7.0",
-    "flow-bin": "^0.48.0",
+    "flow-bin": "^0.49.1",
     "gulp": "^3.9.0",
     "gulp-babel": "^6.0.0",
     "gulp-if": "^2.0.1",
diff --git a/yarn.lock b/yarn.lock
index 9b88836578..0be553080b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1931,9 +1931,9 @@ flat-cache@^1.2.1:
     graceful-fs "^4.1.2"
     write "^0.2.1"
 
-flow-bin@^0.48.0:
-  version "0.48.0"
-  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.48.0.tgz#72d075143524358db8901525e3c784dc13a7c7ee"
+flow-bin@^0.49.1:
+  version "0.49.1"
+  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.49.1.tgz#c9e456b3173a7535a4ffaf28956352c63bb8e3e9"
 
 for-in@^1.0.1:
   version "1.0.2"