diff --git a/src/index.js.flow b/src/index.js.flow
index f63e6cd96..a0e55e690 100644
--- a/src/index.js.flow
+++ b/src/index.js.flow
@@ -125,6 +125,10 @@ declare module.exports: {
   hasSystemFeature: (feature: string) => Promise<boolean>,
   hasSystemFeatureSync: (feature: string) => boolean,
   hasSystemFeatureSync: (feature: string) => boolean,
+  hasGms: () => Promise<boolean>,
+  hasGmsSync: () => boolean,
+  hasHms: () => Promise<boolean>,
+  hasHmsSync: () => boolean,
   isAirplaneMode: () => Promise<boolean>,
   isAirplaneModeSync: () => boolean,
   isBatteryCharging: () => Promise<boolean>,