diff --git a/package.json b/package.json
index 5066427dc5f5b..f34cce9415e38 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
     "eslint-plugin-react-internal": "link:./scripts/eslint-rules",
     "fbjs-scripts": "1.2.0",
     "filesize": "^6.0.1",
-    "flow-bin": "^0.142.0",
+    "flow-bin": "^0.143.0",
     "glob": "^7.1.6",
     "glob-stream": "^6.1.0",
     "google-closure-compiler": "^20200517.0.0",
diff --git a/packages/react-dom/src/server/ReactDOMFizzServerBrowser.js b/packages/react-dom/src/server/ReactDOMFizzServerBrowser.js
index c9cf4b81b5301..2394f656c53a7 100644
--- a/packages/react-dom/src/server/ReactDOMFizzServerBrowser.js
+++ b/packages/react-dom/src/server/ReactDOMFizzServerBrowser.js
@@ -57,10 +57,10 @@ function renderToReadableStream(
       const stream: ReactDOMServerReadableStream = (new ReadableStream(
         {
           type: 'bytes',
-          pull(controller): ?Promise<void> {
+          pull: (controller): ?Promise<void> => {
             startFlowing(request, controller);
           },
-          cancel(reason): ?Promise<void> {
+          cancel: (reason): ?Promise<void> => {
             abort(request);
           },
         },
diff --git a/packages/react-dom/src/server/ReactDOMFizzStaticBrowser.js b/packages/react-dom/src/server/ReactDOMFizzStaticBrowser.js
index 2036b078b760d..743e807a0594f 100644
--- a/packages/react-dom/src/server/ReactDOMFizzStaticBrowser.js
+++ b/packages/react-dom/src/server/ReactDOMFizzStaticBrowser.js
@@ -50,7 +50,7 @@ function prerender(
       const stream = new ReadableStream(
         {
           type: 'bytes',
-          pull(controller): ?Promise<void> {
+          pull: (controller): ?Promise<void> => {
             startFlowing(request, controller);
           },
         },
diff --git a/packages/react-reconciler/src/ReactStrictModeWarnings.new.js b/packages/react-reconciler/src/ReactStrictModeWarnings.new.js
index 4de90a15869a8..c9e5ffce85cfb 100644
--- a/packages/react-reconciler/src/ReactStrictModeWarnings.new.js
+++ b/packages/react-reconciler/src/ReactStrictModeWarnings.new.js
@@ -20,11 +20,11 @@ type FiberArray = Array<Fiber>;
 type FiberToFiberComponentsMap = Map<Fiber, FiberArray>;
 
 const ReactStrictModeWarnings = {
-  recordUnsafeLifecycleWarnings(fiber: Fiber, instance: any): void {},
-  flushPendingUnsafeLifecycleWarnings(): void {},
-  recordLegacyContextWarning(fiber: Fiber, instance: any): void {},
-  flushLegacyContextWarning(): void {},
-  discardPendingWarnings(): void {},
+  recordUnsafeLifecycleWarnings: (fiber: Fiber, instance: any): void => {},
+  flushPendingUnsafeLifecycleWarnings: (): void => {},
+  recordLegacyContextWarning: (fiber: Fiber, instance: any): void => {},
+  flushLegacyContextWarning: (): void => {},
+  discardPendingWarnings: (): void => {},
 };
 
 if (__DEV__) {
diff --git a/packages/react-reconciler/src/ReactStrictModeWarnings.old.js b/packages/react-reconciler/src/ReactStrictModeWarnings.old.js
index 4de90a15869a8..c9e5ffce85cfb 100644
--- a/packages/react-reconciler/src/ReactStrictModeWarnings.old.js
+++ b/packages/react-reconciler/src/ReactStrictModeWarnings.old.js
@@ -20,11 +20,11 @@ type FiberArray = Array<Fiber>;
 type FiberToFiberComponentsMap = Map<Fiber, FiberArray>;
 
 const ReactStrictModeWarnings = {
-  recordUnsafeLifecycleWarnings(fiber: Fiber, instance: any): void {},
-  flushPendingUnsafeLifecycleWarnings(): void {},
-  recordLegacyContextWarning(fiber: Fiber, instance: any): void {},
-  flushLegacyContextWarning(): void {},
-  discardPendingWarnings(): void {},
+  recordUnsafeLifecycleWarnings: (fiber: Fiber, instance: any): void => {},
+  flushPendingUnsafeLifecycleWarnings: (): void => {},
+  recordLegacyContextWarning: (fiber: Fiber, instance: any): void => {},
+  flushLegacyContextWarning: (): void => {},
+  discardPendingWarnings: (): void => {},
 };
 
 if (__DEV__) {
diff --git a/packages/react-refresh/src/ReactFreshRuntime.js b/packages/react-refresh/src/ReactFreshRuntime.js
index 00e7932ec401e..2a971185f337a 100644
--- a/packages/react-refresh/src/ReactFreshRuntime.js
+++ b/packages/react-refresh/src/ReactFreshRuntime.js
@@ -460,20 +460,18 @@ export function injectIntoGlobalHook(globalObject: any): void {
       globalObject.__REACT_DEVTOOLS_GLOBAL_HOOK__ = hook = {
         renderers: new Map(),
         supportsFiber: true,
-        inject(injected) {
-          return nextID++;
-        },
-        onScheduleFiberRoot(
+        inject: injected => nextID++,
+        onScheduleFiberRoot: (
           id: number,
           root: FiberRoot,
           children: ReactNodeList,
-        ) {},
-        onCommitFiberRoot(
+        ) => {},
+        onCommitFiberRoot: (
           id: number,
           root: FiberRoot,
           maybePriorityLevel: mixed,
           didError: boolean,
-        ) {},
+        ) => {},
         onCommitFiberUnmount() {},
       };
     }
diff --git a/packages/react-server-dom-webpack/src/ReactFlightDOMServerBrowser.js b/packages/react-server-dom-webpack/src/ReactFlightDOMServerBrowser.js
index 2cbd609b473f2..243040ab36131 100644
--- a/packages/react-server-dom-webpack/src/ReactFlightDOMServerBrowser.js
+++ b/packages/react-server-dom-webpack/src/ReactFlightDOMServerBrowser.js
@@ -52,13 +52,13 @@ function renderToReadableStream(
   const stream = new ReadableStream(
     {
       type: 'bytes',
-      start(controller): ?Promise<void> {
+      start: (controller): ?Promise<void> => {
         startWork(request);
       },
-      pull(controller): ?Promise<void> {
+      pull: (controller): ?Promise<void> => {
         startFlowing(request, controller);
       },
-      cancel(reason): ?Promise<void> {},
+      cancel: (reason): ?Promise<void> => {},
     },
     // $FlowFixMe size() methods are not allowed on byte streams.
     {highWaterMark: 0},
diff --git a/scripts/flow/config/flowconfig b/scripts/flow/config/flowconfig
index 0299da6337508..03ebe986a168a 100644
--- a/scripts/flow/config/flowconfig
+++ b/scripts/flow/config/flowconfig
@@ -45,11 +45,9 @@ esproposal.class_instance_fields=enable
 esproposal.optional_chaining=enable
 exact_by_default=true
 munge_underscores=false
-types_first=true
-well_formed_exports=true
 
 # Substituted by createFlowConfig.js:
 %REACT_RENDERER_FLOW_OPTIONS%
 
 [version]
-^0.142.0
+^0.143.0
diff --git a/yarn.lock b/yarn.lock
index 88c7fbc092c39..33cc0aafa251a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7911,10 +7911,10 @@ flatted@^2.0.0:
   resolved "https://registry.yarnpkg.com/flatted/-/flatted-2.0.2.tgz#4575b21e2bcee7434aa9be662f4b7b5f9c2b5138"
   integrity sha512-r5wGx7YeOwNWNlCA0wQ86zKyDLMQr+/RB8xy74M4hTphfmjlijTSSXGuH8rnvKZnfT9i+75zmd8jcKdMR4O6jA==
 
-flow-bin@^0.142.0:
-  version "0.142.0"
-  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.142.0.tgz#b46b69de1123cf7c5a50917402968e07291df054"
-  integrity sha512-YgiapK/wrJjcgSgOWfoncbZ4vZrZWdHs+p7V9duI9zo4ehW2nM/VRrpSaWoZ+CWu3t+duGyAvupJvC6MM2l07w==
+flow-bin@^0.143.0:
+  version "0.143.1"
+  resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.143.1.tgz#2ff825dfd85e84531b0ae780842cb1c2a9743cd2"
+  integrity sha512-6S6bgZ/pghBzEUELXkwFH/bsHT+GBMo8ftHDYs0SSJ+1e6NRdFfqxcYhaTvAK8zteSfQLZBIoec6G4WPPp4qQg==
 
 fluent-syntax@0.13.0:
   version "0.13.0"