diff --git a/app/build.gradle b/app/build.gradle
index ebc98e3..cdb79a5 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -48,7 +48,7 @@ dependencies {
     compile 'com.android.support:design:25.1.1'
     compile 'com.google.android.gms:play-services-appindexing:9.8.0'
     compile 'org.apache.commons:commons-math3:3.6.1'
-    compile 'com.github.axet:android-library:1.9.0' // compile project(':android-library')
+    compile 'com.github.axet:android-library:1.9.1' // compile project(':android-library')
     compile 'com.github.axet:jebml:0.0.2' // compile project(':jebml')
     debugCompile project(path: ':vorbis', configuration: "libraryDebug")
     releaseCompile project(path: ':vorbis', configuration: "libraryRelease")
diff --git a/vorbis/.gitignore b/vorbis/.gitignore
index 796b96d..a222170 100644
--- a/vorbis/.gitignore
+++ b/vorbis/.gitignore
@@ -1 +1,2 @@
 /build
+.externalNativeBuild
diff --git a/vorbis/libogg/.gitignore b/vorbis/libogg/.gitignore
index 796b96d..a222170 100644
--- a/vorbis/libogg/.gitignore
+++ b/vorbis/libogg/.gitignore
@@ -1 +1,2 @@
 /build
+.externalNativeBuild
diff --git a/vorbis/libvorbis/.gitignore b/vorbis/libvorbis/.gitignore
index 796b96d..a222170 100644
--- a/vorbis/libvorbis/.gitignore
+++ b/vorbis/libvorbis/.gitignore
@@ -1 +1,2 @@
 /build
+.externalNativeBuild