diff --git a/persistence/build.gradle.kts b/persistence/build.gradle.kts
index 614ebeacb4ae4c69ff9d1ae9dac27375d6901e2c..52247be8da5710a5ad3f75d4a4e2374d5fd49335 100644
--- a/persistence/build.gradle.kts
+++ b/persistence/build.gradle.kts
@@ -25,7 +25,6 @@ plugins {
 
 android {
   compileSdkVersion(28)
-  buildToolsVersion("28.0.0")
 
   defaultConfig {
     minSdkVersion(16)
diff --git a/viewmodel/build.gradle.kts b/viewmodel/build.gradle.kts
index 5fee6aae27b95eb94034b12951d4e5e29645973c..df10697cf098a977b561959368eaf407441c0568 100644
--- a/viewmodel/build.gradle.kts
+++ b/viewmodel/build.gradle.kts
@@ -24,7 +24,6 @@ plugins {
 
 android {
   compileSdkVersion(28)
-  buildToolsVersion("28.0.0")
 
   defaultConfig {
     minSdkVersion(16)