diff --git a/android/sample-app/build.gradle.kts b/android/sample-app/build.gradle.kts
index bf96a29..a884978 100644
--- a/android/sample-app/build.gradle.kts
+++ b/android/sample-app/build.gradle.kts
@@ -19,7 +19,7 @@ android {
         minSdk = 26
         targetSdk = 35
         versionCode = 1
-        versionName = "0.1.4"
+        versionName = "0.1.5"
     }
 
     compileOptions {
diff --git a/android/sample-app/src/main/java/cn/learningpad/oraltrainer/sample/SentenceExplanationApi.kt b/android/sample-app/src/main/java/cn/learningpad/oraltrainer/sample/SentenceExplanationApi.kt
index 67d63ad..b5f6540 100644
--- a/android/sample-app/src/main/java/cn/learningpad/oraltrainer/sample/SentenceExplanationApi.kt
+++ b/android/sample-app/src/main/java/cn/learningpad/oraltrainer/sample/SentenceExplanationApi.kt
@@ -91,7 +91,7 @@ internal class SentenceExplanationApi(
             connection.useCaches = false
             connection.setRequestProperty("Accept", "application/json")
             connection.setRequestProperty("Content-Type", "application/json")
-            connection.setRequestProperty("User-Agent", "OralTrainerSample/0.1.4 (Android)")
+            connection.setRequestProperty("User-Agent", "OralTrainerSample/0.1.5 (Android)")
             tokenProvider().takeIf { it.isNotBlank() }?.let {
                 connection.setRequestProperty("Authorization", "Bearer $it")
             }