diff --git a/README.md b/README.md
index 64f0368..c1ae414 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ Two permissions are required to use the API.AI Android SDK:
 Add this dependencies to your project to use SDK
 
 ```
-compile 'ai.api:sdk:1.8.1@aar'
+compile 'ai.api:sdk:1.9.0@aar'
 // api.ai SDK dependencies
 compile 'com.android.support:appcompat-v7:23.2.1'
 compile 'com.google.code.gson:gson:2.3'
@@ -64,7 +64,7 @@ To implement speech recognition and natural language processing features in your
 1. Add a dependency to your *build.gradle* file. Add the following line to your **build.gradle** file. (In the sample app, the **apiAISampleApp/build.gradle** is an example of how to do this.)
 
     ```
-    compile 'ai.api:sdk:1.8.1@aar'
+    compile 'ai.api:sdk:1.9.0@aar'
     // api.ai SDK dependencies
     compile 'com.android.support:appcompat-v7:23.2.1'
     compile 'com.google.code.gson:gson:2.3'
@@ -221,7 +221,7 @@ Next you will integrate with the SDK to be able to make calls. Follow these step
     
 3. Save **AndroidManifest.xml**.
 4. Next, you need to add a new dependency for the AI.API library. Right click on your module name (it should be _app_) in the Project Navigator and select **Open Module Settings**. Click on the **Dependencies** tab. Click on the **+** sign on the bottom left side and select **Library dependency**. <br/>![Add dependency](docs/images/Dependencies.png)
-5. In the opened dialog search **ai.api**, choose **ai.api:sdk:1.8.1** item and append `@aar` to the end of library name (see image) then click OK.<br/> ![Add dependency](docs/images/Dependencies2.png)
+5. In the opened dialog search **ai.api**, choose **ai.api:sdk:1.9.0** item and append `@aar` to the end of library name (see image) then click OK.<br/> ![Add dependency](docs/images/Dependencies2.png)
     * Also you need to add dependencies of the SDK library : *com.android.support:appcompat-v7*, *com.google.code.gson:gson*, *commons-io:commons-io*. Add them in the same way.
 6. Open **MainActivity.java** under **app/src/main/java/com.example.yourAppName.app**, or whatever your package name is.
 7. Expand the import section and add the following lines to import the necessary API.AI classes:
diff --git a/apiAISampleApp/build.gradle b/apiAISampleApp/build.gradle
index dcc8247..74439d2 100644
--- a/apiAISampleApp/build.gradle
+++ b/apiAISampleApp/build.gradle
@@ -33,7 +33,7 @@ dependencies {
     compile 'com.android.support:appcompat-v7:23.2.1'
     compile 'com.google.code.gson:gson:2.3'
     compile 'commons-io:commons-io:2.4'
-    //compile 'ai.api:sdk:1.8.1@aar'
+    //compile 'ai.api:sdk:1.9.0@aar'
     // this line left for testing purposes
     compile project(':ailib')
 }
diff --git a/docs/integration.md b/docs/integration.md
index 6ee04f2..d5b4f16 100644
--- a/docs/integration.md
+++ b/docs/integration.md
@@ -12,7 +12,7 @@ Also SDK library must be in your app dependencies (see **build.gradle**)
 ```
 dependencies {
     // some another dependencies...
-    compile 'ai.api:sdk:1.8.1@aar'
+    compile 'ai.api:sdk:1.9.0@aar'
     // api.ai SDK dependencies
     compile 'com.android.support:appcompat-v7:21.0.3'
     compile 'com.google.code.gson:gson:2.3'
diff --git a/gradle.properties b/gradle.properties
index eaff859..2b98db3 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -17,8 +17,8 @@
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
 # org.gradle.parallel=true
 
-VERSION_NAME=1.8.1
-VERSION_CODE=36
+VERSION_NAME=1.9.0
+VERSION_CODE=40
 GROUP=ai.api
 
 POM_DESCRIPTION=API.AI Android SDK allows using voice commands and integration with dialog scenarios defined for a particular agent in API.AI.