diff --git a/app/build.gradle b/app/build.gradle
index 7ffadf6e..62b1069c 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,13 +7,13 @@ def keystoreProperties = new Properties()
 keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
 
 android {
-    compileSdkVersion 28
-    buildToolsVersion '28.0.3'
+    compileSdkVersion 29
+    buildToolsVersion '29.0.2'
 
     defaultConfig {
         applicationId "com.simplemobiletools.calculator"
         minSdkVersion 21
-        targetSdkVersion 28
+        targetSdkVersion 29
         versionCode 28
         versionName "5.0.5"
         setProperty("archivesBaseName", "calculator")
@@ -52,7 +52,7 @@ android {
 }
 
 dependencies {
-    implementation 'com.simplemobiletools:commons:5.17.17'
+    implementation 'com.simplemobiletools:commons:5.20.0'
     implementation 'me.grantland:autofittextview:0.2.1'
 
     testImplementation 'junit:junit:4.12'