diff --git a/Video-Transformers-Java/app/build.gradle b/Video-Transformers-Java/app/build.gradle
index 8c5a0480..6993c24d 100644
--- a/Video-Transformers-Java/app/build.gradle
+++ b/Video-Transformers-Java/app/build.gradle
@@ -32,7 +32,7 @@ android {
 
 dependencies {
     // Dependency versions are defined in the ../../commons.gradle file
-    implementation "com.opentok.android:opentok-android-sdk:2.25.2"
+    implementation "com.opentok.android:opentok-android-sdk:${extOpentokSdkVersion}"
     implementation "androidx.appcompat:appcompat:${extAppCompatVersion}"
     implementation "pub.devrel:easypermissions:${extEasyPermissionsVersion}"
     implementation "androidx.constraintlayout:constraintlayout:${extConstraintLyoutVersion}"