diff --git a/android/app/build.gradle b/android/app/build.gradle
index 3fc7e2ccaa..989ea50134 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -5,8 +5,9 @@ android {
     ndkVersion '25.2.9519653'
     namespace 'jp.hiroshiba.voicevox'
 
-    compileSdkVersion rootProject.ext.compileSdkVersion
     defaultConfig {
+        compileSdk rootProject.ext.compileSdkVersion
+
         applicationId "jp.hiroshiba.voicevox"
         minSdkVersion rootProject.ext.minSdkVersion
         targetSdkVersion rootProject.ext.targetSdkVersion
diff --git a/src/backend/mobile/engine/info.ts b/src/backend/mobile/engine/info.ts
index 5d8f66df54..e67d25c759 100644
--- a/src/backend/mobile/engine/info.ts
+++ b/src/backend/mobile/engine/info.ts
@@ -9,8 +9,7 @@ const infoProvider: ApiProvider = ({ corePlugin }) => {
 
   return {
     async versionVersionGet() {
-      // 何故か""で囲まれているのを再現。直ったら消す。
-      return JSON.stringify(corePlugin.getVersion());
+      return await corePlugin.getVersion().then((res) => res.value);
     },
     async engineManifestEngineManifestGet() {
       if (!engineManifest) {