diff --git a/packages/react-native/Libraries/Utilities/NativePlatformConstantsAndroid.js b/packages/react-native/Libraries/Utilities/NativePlatformConstantsAndroid.js
index e1329e8c589..7612e779b3f 100644
--- a/packages/react-native/Libraries/Utilities/NativePlatformConstantsAndroid.js
+++ b/packages/react-native/Libraries/Utilities/NativePlatformConstantsAndroid.js
@@ -19,7 +19,7 @@ export interface Spec extends TurboModule {
       major: number,
       minor: number,
       patch: number,
-      prerelease: ?number,
+      prerelease: ?string,
     |},
     Version: number,
     Release: string,
diff --git a/packages/react-native/Libraries/Utilities/NativePlatformConstantsIOS.js b/packages/react-native/Libraries/Utilities/NativePlatformConstantsIOS.js
index cf60d5ec984..95997c70832 100644
--- a/packages/react-native/Libraries/Utilities/NativePlatformConstantsIOS.js
+++ b/packages/react-native/Libraries/Utilities/NativePlatformConstantsIOS.js
@@ -19,7 +19,7 @@ export interface Spec extends TurboModule {
       major: number,
       minor: number,
       patch: number,
-      prerelease: ?number,
+      prerelease: ?string,
     |},
     forceTouchAvailable: boolean,
     osVersion: string,
diff --git a/packages/react-native/Libraries/Utilities/Platform.android.js b/packages/react-native/Libraries/Utilities/Platform.android.js
index 29234be81a7..f41f32ffdf8 100644
--- a/packages/react-native/Libraries/Utilities/Platform.android.js
+++ b/packages/react-native/Libraries/Utilities/Platform.android.js
@@ -32,7 +32,7 @@ const Platform = {
       major: number,
       minor: number,
       patch: number,
-      prerelease: ?number,
+      prerelease: ?string,
     |},
     Version: number,
     Release: string,
diff --git a/packages/react-native/Libraries/Utilities/Platform.d.ts b/packages/react-native/Libraries/Utilities/Platform.d.ts
index 465a82b35c6..a37235f5f04 100644
--- a/packages/react-native/Libraries/Utilities/Platform.d.ts
+++ b/packages/react-native/Libraries/Utilities/Platform.d.ts
@@ -23,7 +23,7 @@ type PlatformConstants = {
     major: number;
     minor: number;
     patch: number;
-    prerelease?: number | null | undefined;
+    prerelease?: string | null | undefined;
   };
 };
 interface PlatformStatic {
diff --git a/packages/react-native/Libraries/Utilities/Platform.ios.js b/packages/react-native/Libraries/Utilities/Platform.ios.js
index 4adf4201c52..c1c3ada2e55 100644
--- a/packages/react-native/Libraries/Utilities/Platform.ios.js
+++ b/packages/react-native/Libraries/Utilities/Platform.ios.js
@@ -35,7 +35,7 @@ const Platform = {
       major: number,
       minor: number,
       patch: number,
-      prerelease: ?number,
+      prerelease: ?string,
     |},
     systemName: string,
   |} {