diff --git a/ScalarApiSampleApp/app/build.gradle b/ScalarApiSampleApp/app/build.gradle
index 322679fe..f9f34e12 100644
--- a/ScalarApiSampleApp/app/build.gradle
+++ b/ScalarApiSampleApp/app/build.gradle
@@ -1,12 +1,12 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 27
+    compileSdkVersion 29
 
     defaultConfig {
         applicationId "com.google.android.apps.forscience.scalarapisampleapp"
         minSdkVersion 19
-        targetSdkVersion 27
+        targetSdkVersion 29
         versionCode 1
         versionName "1.0"
     }
@@ -22,13 +22,13 @@ android {
 dependencies {
     // Uncomment one of the following two lines.
     // 1) For local rapid development on the API files themselves
-    // compile project(':scalarinputapi')
+//    implementation project(':scalarinputapi')
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
 
     // 2) To download and build against the official public API library
-    compile 'com.google.android.apps.forscience:science-journal-api:0.2'
+    implementation 'com.google.android.apps.forscience:science-journal-api:0.2'
+    implementation "androidx.appcompat:appcompat:1.2.0"
 
-    compile fileTree(dir: 'libs', include: ['*.jar'])
-    testCompile 'junit:junit:4.12'
-    compile 'com.android.support:appcompat-v7:27.0.1'
-    compile 'com.google.guava:guava:18.0'
+    testImplementation 'junit:junit:4.12'
+    implementation 'com.google.guava:guava:18.0'
 }
diff --git a/ScalarApiSampleApp/build.gradle b/ScalarApiSampleApp/build.gradle
index f93d6081..cf780a6a 100644
--- a/ScalarApiSampleApp/build.gradle
+++ b/ScalarApiSampleApp/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.0'
+        classpath 'com.android.tools.build:gradle:4.1.3'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/ScalarApiSampleApp/gradle.properties b/ScalarApiSampleApp/gradle.properties
index 1d3591c8..59d5aab6 100644
--- a/ScalarApiSampleApp/gradle.properties
+++ b/ScalarApiSampleApp/gradle.properties
@@ -15,4 +15,6 @@
 # When configured, Gradle will run in incubating parallel mode.
 # This option should only be used with decoupled projects. More details, visit
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
-# org.gradle.parallel=true
\ No newline at end of file
+# org.gradle.parallel=true
+android.useAndroidX=true
+android.enableJetifier=true
\ No newline at end of file
diff --git a/ScalarApiSampleApp/gradle/wrapper/gradle-wrapper.properties b/ScalarApiSampleApp/gradle/wrapper/gradle-wrapper.properties
index 9ab75f2f..3af54073 100644
--- a/ScalarApiSampleApp/gradle/wrapper/gradle-wrapper.properties
+++ b/ScalarApiSampleApp/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Wed Dec 20 09:58:36 EST 2017
+#Thu Apr 29 15:04:19 CEST 2021
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-bin.zip
diff --git a/api/ScienceJournalApi/build.gradle b/api/ScienceJournalApi/build.gradle
index 671f8f7a..efc108c3 100644
--- a/api/ScienceJournalApi/build.gradle
+++ b/api/ScienceJournalApi/build.gradle
@@ -6,16 +6,16 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.2'
+        classpath 'com.android.tools.build:gradle:4.1.3'
     }
 }
 
 android {
-    compileSdkVersion 28
+    compileSdkVersion 29
 
     defaultConfig {
         minSdkVersion 19
-        targetSdkVersion 28
+        targetSdkVersion 29
         versionCode 1
         versionName "1.0"
     }