diff --git a/enabling_splash_screen/android/app/build.gradle b/enabling_splash_screen/android/app/build.gradle
index 2bb7e59..3e6ffb4 100644
--- a/enabling_splash_screen/android/app/build.gradle
+++ b/enabling_splash_screen/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/handling_routes/android/app/build.gradle b/handling_routes/android/app/build.gradle
index 3468856..57a38cf 100644
--- a/handling_routes/android/app/build.gradle
+++ b/handling_routes/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/load_local_image/android/app/build.gradle b/load_local_image/android/app/build.gradle
index 78df2d1..02d333b 100644
--- a/load_local_image/android/app/build.gradle
+++ b/load_local_image/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/load_local_json/android/app/build.gradle b/load_local_json/android/app/build.gradle
index 75932e8..93903cc 100644
--- a/load_local_json/android/app/build.gradle
+++ b/load_local_json/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/navigation_drawer/android/app/build.gradle b/navigation_drawer/android/app/build.gradle
index dd7f292..818b7c7 100644
--- a/navigation_drawer/android/app/build.gradle
+++ b/navigation_drawer/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/simple_material_app/android/app/build.gradle b/simple_material_app/android/app/build.gradle
index 9bd03c9..8d7c49b 100644
--- a/simple_material_app/android/app/build.gradle
+++ b/simple_material_app/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/stateful_widget/android/app/build.gradle b/stateful_widget/android/app/build.gradle
index 9977c4f..72533a2 100644
--- a/stateful_widget/android/app/build.gradle
+++ b/stateful_widget/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/stateless_widgets/android/app/build.gradle b/stateless_widgets/android/app/build.gradle
index ba87b4e..d27ae77 100644
--- a/stateless_widgets/android/app/build.gradle
+++ b/stateless_widgets/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/tip_calculator/android/app/build.gradle b/tip_calculator/android/app/build.gradle
index 6db3edb..8def940 100644
--- a/tip_calculator/android/app/build.gradle
+++ b/tip_calculator/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/using_alert_dialog/android/app/build.gradle b/using_alert_dialog/android/app/build.gradle
index f5f0cc5..ccabf7e 100644
--- a/using_alert_dialog/android/app/build.gradle
+++ b/using_alert_dialog/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+  androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+  androidTestImplementation 'com.android.support.test:runner:1.0.2'
+  androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/using_bottom_nav_bar/android/app/build.gradle b/using_bottom_nav_bar/android/app/build.gradle
index 441d557..62b0143 100644
--- a/using_bottom_nav_bar/android/app/build.gradle
+++ b/using_bottom_nav_bar/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/using_custom_fonts/android/app/build.gradle b/using_custom_fonts/android/app/build.gradle
index 59d7153..2215be4 100644
--- a/using_custom_fonts/android/app/build.gradle
+++ b/using_custom_fonts/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/using_edittext/android/app/build.gradle b/using_edittext/android/app/build.gradle
index e0c8963..4873d66 100644
--- a/using_edittext/android/app/build.gradle
+++ b/using_edittext/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/using_gradient/android/app/build.gradle b/using_gradient/android/app/build.gradle
index 6213924..346e3c9 100644
--- a/using_gradient/android/app/build.gradle
+++ b/using_gradient/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/using_http_get/android/app/build.gradle b/using_http_get/android/app/build.gradle
index 1395a6f..8816c1a 100644
--- a/using_http_get/android/app/build.gradle
+++ b/using_http_get/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/using_listview/android/app/build.gradle b/using_listview/android/app/build.gradle
index d4853a1..d9f7742 100644
--- a/using_listview/android/app/build.gradle
+++ b/using_listview/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/using_snackbar/android/app/build.gradle b/using_snackbar/android/app/build.gradle
index 4c28122..b28d770 100644
--- a/using_snackbar/android/app/build.gradle
+++ b/using_snackbar/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/using_stepper/android/app/build.gradle b/using_stepper/android/app/build.gradle
index 8541966..972c6c7 100644
--- a/using_stepper/android/app/build.gradle
+++ b/using_stepper/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/using_tabs/android/app/build.gradle b/using_tabs/android/app/build.gradle
index d6f2a4f..f440d92 100644
--- a/using_tabs/android/app/build.gradle
+++ b/using_tabs/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }
diff --git a/using_theme/android/app/build.gradle b/using_theme/android/app/build.gradle
index 33e4a2e..c0dc76c 100644
--- a/using_theme/android/app/build.gradle
+++ b/using_theme/android/app/build.gradle
@@ -46,7 +46,7 @@ flutter {
 }
 
 dependencies {
-    androidTestCompile 'com.android.support:support-annotations:28.0.0'
-    androidTestCompile 'com.android.support.test:runner:1.0.2'
-    androidTestCompile 'com.android.support.test:rules:1.0.2'
+    androidTestImplementation 'com.android.support:support-annotations:28.0.0'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test:rules:1.0.2'
 }