diff --git a/.flowconfig b/.flowconfig
index bad57bc52f6..c3375a68bc5 100644
--- a/.flowconfig
+++ b/.flowconfig
@@ -28,10 +28,10 @@ suppress_type=$FlowFixMe
 suppress_type=$FixMe
 suppress_type=$FlowExpectedError
 
-suppress_comment=\\(.\\|\n\\)*\\$FlowFixMe\\($\\|[^(]\\|(\\(>=0\\.\\(3[0-1]\\|[1-2][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*www[a-z,_]*\\)?)\\)
-suppress_comment=\\(.\\|\n\\)*\\$FlowIssue\\((\\(>=0\\.\\(3[0-1]\\|[1-2][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*www[a-z,_]*\\)?)\\)?:? #[0-9]+
+suppress_comment=\\(.\\|\n\\)*\\$FlowFixMe\\($\\|[^(]\\|(\\(>=0\\.\\(3[0-3]\\|[1-2][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*www[a-z,_]*\\)?)\\)
+suppress_comment=\\(.\\|\n\\)*\\$FlowIssue\\((\\(>=0\\.\\(3[0-3]\\|[1-2][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*www[a-z,_]*\\)?)\\)?:? #[0-9]+
 suppress_comment=\\(.\\|\n\\)*\\$FlowFixedInNextDeploy
 suppress_comment=\\(.\\|\n\\)*\\$FlowExpectedError
 
 [version]
-^0.31.0
+^0.33.0
diff --git a/package.json b/package.json
index 0629a56ede3..ecca7d937e4 100644
--- a/package.json
+++ b/package.json
@@ -43,9 +43,9 @@
     "eslint": "1.10.3",
     "eslint-plugin-react": "4.1.0",
     "eslint-plugin-react-internal": "file:eslint-rules",
-    "fbjs": "^0.8.4",
+    "fbjs": "^0.8.5",
     "fbjs-scripts": "^0.6.0",
-    "flow-bin": "^0.31.0",
+    "flow-bin": "^0.33.0",
     "glob": "^6.0.1",
     "grunt": "^0.4.5",
     "grunt-cli": "^0.1.13",
diff --git a/src/renderers/dom/client/eventPlugins/SimpleEventPlugin.js b/src/renderers/dom/client/eventPlugins/SimpleEventPlugin.js
index 5b30244cc64..e48578eb6ae 100644
--- a/src/renderers/dom/client/eventPlugins/SimpleEventPlugin.js
+++ b/src/renderers/dom/client/eventPlugins/SimpleEventPlugin.js
@@ -156,7 +156,7 @@ function isInteractive(tag) {
   );
 }
 
-function shouldPreventMouseEvent(inst) {
+function shouldPreventMouseEvent(inst?: SyntheticEvent) {
   if (inst) {
     var disabled = inst._currentElement && inst._currentElement.props.disabled;
 
diff --git a/src/renderers/native/NativeMethodsMixin.js b/src/renderers/native/NativeMethodsMixin.js
index 13df0f73b92..61f6b3e84bf 100644
--- a/src/renderers/native/NativeMethodsMixin.js
+++ b/src/renderers/native/NativeMethodsMixin.js
@@ -212,6 +212,7 @@ function mountSafeCallback(
   callback: ?Function
 ): any {
   return function() {
+    // $FlowFixMe(>=0.33.0)
     if (!callback || (context.isMounted && !context.isMounted())) {
       return undefined;
     }
diff --git a/src/renderers/shared/ReactDebugTool.js b/src/renderers/shared/ReactDebugTool.js
index 0f596124600..f7edbfbc745 100644
--- a/src/renderers/shared/ReactDebugTool.js
+++ b/src/renderers/shared/ReactDebugTool.js
@@ -239,7 +239,6 @@ function resumeCurrentLifeCycleTimer() {
 
 var lastMarkTimeStamp = 0;
 var canUsePerformanceMeasure: boolean =
-// $FlowFixMe https://github.com/facebook/flow/issues/2345
   typeof performance !== 'undefined' &&
   typeof performance.mark === 'function' &&
   typeof performance.clearMarks === 'function' &&
diff --git a/src/renderers/shared/fiber/ReactFiberBeginWork.js b/src/renderers/shared/fiber/ReactFiberBeginWork.js
index 3d6266227c6..d135dfc9c6d 100644
--- a/src/renderers/shared/fiber/ReactFiberBeginWork.js
+++ b/src/renderers/shared/fiber/ReactFiberBeginWork.js
@@ -382,6 +382,7 @@ module.exports = function<T, P, I, C>(config : HostConfig<T, P, I, C>, getSchedu
         return null;
       case HostComponent:
         if (workInProgress.stateNode && config.beginUpdate) {
+          // $FlowFixMe(>=0.33.0)
           config.beginUpdate(workInProgress.stateNode);
         }
         return updateHostComponent(current, workInProgress);
diff --git a/src/renderers/shared/utils/ReactErrorUtils.js b/src/renderers/shared/utils/ReactErrorUtils.js
index 25bed212bb8..1295908b822 100644
--- a/src/renderers/shared/utils/ReactErrorUtils.js
+++ b/src/renderers/shared/utils/ReactErrorUtils.js
@@ -77,7 +77,6 @@ if (__DEV__) {
       var evtType = `react-${name}`;
       fakeNode.addEventListener(evtType, boundFunc, false);
       var evt = document.createEvent('Event');
-      // $FlowFixMe https://github.com/facebook/flow/issues/2336
       evt.initEvent(evtType, false, false);
       fakeNode.dispatchEvent(evt);
       fakeNode.removeEventListener(evtType, boundFunc, false);