diff --git a/README.md b/README.md
index 53c3369..bac9186 100644
--- a/README.md
+++ b/README.md
@@ -1,10 +1,10 @@
 ![](https://github.com/imobile-maio/maio-iOS-SDK/blob/wiki/doc/images/logo.png)
 
 # maio Android SDK
-- SDK Version: 1.1.8
+- SDK Version: 1.1.9
     + AndroidManifest.xmlにHtmlBasedAdActivityを追加してください。
     + Please Add HtmlBasedAdActivity to AndroidManifest.xml.
-- Released: 2019/05/27
+- Released: 2019/07/01
 - 対応 Android Version: 4.1 以降
 - Supported Formats: Rewarded/Interstitial
 
@@ -31,7 +31,7 @@
 
 <pre><code>dependencies {
   implementation 'com.google.android.gms:play-services-ads:+'
-  implementation 'com.maio:android-sdk:1.1.8'
+  implementation 'com.maio:android-sdk:1.1.9'
 }
 </pre></code>
 
@@ -39,7 +39,7 @@
 
 <pre><code>dependencies {
   implementation 'com.google.android.gms:play-services-ads:+'
-  implementation 'com.maio:android-sdk:1.1.8@aar'
+  implementation 'com.maio:android-sdk:1.1.9@aar'
 }
 </pre></code>
 
diff --git a/androidstudio/maio/maio.jar b/androidstudio/maio/maio.jar
index 2db0d71..f2f7995 100644
Binary files a/androidstudio/maio/maio.jar and b/androidstudio/maio/maio.jar differ
diff --git a/changelog.txt b/changelog.txt
index bca7eb6..19e24d0 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,3 +1,7 @@
+■ maio-Android-SDK-1.1.9 リリース
+
+- バックグラウンド時の広告リリーソスダウンロード通信を行わないように修正
+
 ■ maio-Android-SDK-1.1.8 リリース
 
 - 広告再生時不具合を修正
diff --git a/maio.aar b/maio.aar
index e88b54c..1001f30 100644
Binary files a/maio.aar and b/maio.aar differ
diff --git a/maio.jar b/maio.jar
index 2db0d71..f2f7995 100644
Binary files a/maio.jar and b/maio.jar differ