diff --git a/SPD-classes/build.gradle b/SPD-classes/build.gradle
index 9bff0368b..2dee8e68f 100644
--- a/SPD-classes/build.gradle
+++ b/SPD-classes/build.gradle
@@ -2,7 +2,6 @@ apply plugin: 'com.android.library'
 
 android {
     compileSdkVersion 28
-    buildToolsVersion "28.0.2"
 
     task ndkBuild(type: Exec){
         description "builds JNI libs from source. " +
diff --git a/build.gradle b/build.gradle
index 1c27257ff..337e672c9 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,6 +4,6 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.2.0'
+        classpath 'com.android.tools.build:gradle:3.2.1'
     }
 }
diff --git a/core/build.gradle b/core/build.gradle
index 5159fc38d..84362f142 100644
--- a/core/build.gradle
+++ b/core/build.gradle
@@ -2,7 +2,6 @@ apply plugin: 'com.android.application'
 
 android {
     compileSdkVersion 28
-    buildToolsVersion "28.0.2"
 
     defaultConfig {
         resConfigs "en_US", "cs", "tr", "ca", "ko", "pl", "it",