diff --git a/build.gradle b/build.gradle
index 3eba3a1..a7aaba1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -28,6 +28,7 @@ ext {
 }
 
 ext {
+    androidxAnnotationVersion = '1.6.0'
     googleAutoServiceVersion = '1.0-rc6'
     squareupJavaPoetVersion = '1.11.1'
 
diff --git a/wellsql/build.gradle b/wellsql/build.gradle
index c7ee038..76313df 100644
--- a/wellsql/build.gradle
+++ b/wellsql/build.gradle
@@ -23,7 +23,7 @@ android {
 
 dependencies {
     api wellSqlAnnotationsProjectDependency
-    implementation 'androidx.annotation:annotation:1.6.0'
+    implementation "androidx.annotation:annotation:$androidxAnnotationVersion"
     testImplementation 'junit:junit:4.12'
 }