diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index fbcf239..078de56 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -26,8 +26,8 @@ android {
         applicationId = "com.pixelized.rplexicon"
         minSdk = 26
         targetSdk = 33
-        versionCode = 3
-        versionName = "0.1.2"
+        versionCode = gitBuildNumber
+        versionName = "0.1.3"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables {
@@ -126,4 +126,13 @@ dependencies {
     kapt("com.github.bumptech.glide:compiler:4.14.2") // this have to be align with landscapist-glide
 }
 
-private val NamedDomainObjectContainer<SigningConfig>.pixelized get() = this.getByName("pixelized")
\ No newline at end of file
+private val NamedDomainObjectContainer<SigningConfig>.pixelized get() = this.getByName("pixelized")
+
+val gitBuildNumber: Int get() {
+    val stdout = org.apache.commons.io.output.ByteArrayOutputStream()
+    rootProject.exec {
+        commandLine("git", "rev-list", "--count", "HEAD")
+        standardOutput = stdout
+    }
+    return stdout.toString().trim().toInt()
+}
\ No newline at end of file