diff --git a/demo/build.gradle b/demo/build.gradle
index be2966d..56bf65a 100644
--- a/demo/build.gradle
+++ b/demo/build.gradle
@@ -5,12 +5,11 @@ buildscript {
     repositories {
         google()
         jcenter()
-        
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.3.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-        classpath 'tech.jackywang:greenbean-pods-plugin:0.0.1'
+        classpath "tech.jackywang:greenbean-pods-plugin:${greenbean_pods_version}"
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
     }
@@ -23,7 +22,7 @@ allprojects {
     repositories {
         google()
         jcenter()
-        
+
     }
 }
 
diff --git a/demo/gradle.properties b/demo/gradle.properties
index 85be9ea..0fb5ad4 100644
--- a/demo/gradle.properties
+++ b/demo/gradle.properties
@@ -13,3 +13,5 @@ org.gradle.jvmargs=-Xmx1536m
 # org.gradle.parallel=true
 # Kotlin code style for this project: "official" or "obsolete":
 kotlin.code.style=official
+
+greenbean_pods_version=0.0.1
\ No newline at end of file
diff --git a/demo/settings.gradle b/demo/settings.gradle
index ead6d32..1a97de9 100644
--- a/demo/settings.gradle
+++ b/demo/settings.gradle
@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'tech.jackywang:greenbean-pods-plugin:0.0.1'
+        classpath "tech.jackywang:greenbean-pods-plugin:${greenbean_pods_version}"
     }
 }