diff --git a/build.gradle b/build.gradle
index 05024aa759..ef26530298 100644
--- a/build.gradle
+++ b/build.gradle
@@ -12,6 +12,8 @@ buildscript {
         }
     }
     dependencies {
+        // Release notes of Android Gradle Plugin (AGP):
+        // https://developer.android.com/studio/releases/gradle-plugin
         classpath 'com.android.tools.build:gradle:7.0.2'
         classpath 'com.google.gms:google-services:4.3.10'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"