diff --git a/ImagePickerLib/src/main/AndroidManifest.xml b/ImagePickerLib/src/main/AndroidManifest.xml
index c7a86826da34ed31d82a2b26d8707ef23a31fad7..71ca9eccb2ba929c0cad6f0ddc988d28503296a1 100644
--- a/ImagePickerLib/src/main/AndroidManifest.xml
+++ b/ImagePickerLib/src/main/AndroidManifest.xml
@@ -19,12 +19,11 @@
 
         <activity
             android:name="com.mx.imgpicker.app.picker.MXImgPickerActivity"
-            android:launchMode="singleInstance"
             android:screenOrientation="portrait"
-            android:theme="@style/Theme.AppCompat.NoActionBar" />
+            android:theme="@style/Theme.AppCompat.DayNight.NoActionBar" />
         <activity
             android:name="com.mx.imgpicker.app.MXImgShowActivity"
             android:screenOrientation="portrait"
-            android:theme="@style/Theme.AppCompat.NoActionBar" />
+            android:theme="@style/Theme.AppCompat.DayNight.NoActionBar" />
     </application>
 </manifest>
\ No newline at end of file
diff --git a/README.md b/README.md
index d36fc152ff9f6c1f8d17215f23e4aaf678af9807..76ddc71ab4d80e7edea913b4eb776966c1cb5103 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@
 Gradle引用
 
 ```gradle
-    implementation 'com.gitee.zhangmengxiong:MXImagePicker:1.6.8'
+    implementation 'com.gitee.zhangmengxiong:MXImagePicker:1.6.9'
 ```
 
 ![Image text](https://gitee.com/zhangmengxiong/MXImagePicker/raw/master/imgs/screenshot1.png)
diff --git a/build.gradle b/build.gradle
index e6d1cdc228c208ab25b07e8f1f89c5b226fabcd0..420e7995e5bbb8f3c3f0f9b8cc9f5d27c15bfc97 100644
--- a/build.gradle
+++ b/build.gradle
@@ -16,5 +16,5 @@ ext {
     minSdkVersion = 21
 
     versionCode = 1
-    versionName = "1.6.8"
+    versionName = "1.6.9"
 }
\ No newline at end of file