diff --git a/lib/main.dart b/lib/main.dart
index e5169f0..260b89f 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -57,7 +57,7 @@ class _MyHomePageState extends State<MyHomePage> {
             ),
             Text(
               '$_message',
-              style: Theme.of(context).textTheme.display1,
+              style: Theme.of(context).textTheme.displaySmall,
             ),
           ],
         ),
diff --git a/pubspec.lock b/pubspec.lock
index 9ccfe16..83c09ca 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -1,48 +1,48 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
-  archive:
+  async:
     dependency: transitive
     description:
-      name: archive
+      name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.11"
-  args:
+    version: "2.9.0"
+  boolean_selector:
     dependency: transitive
     description:
-      name: args
+      name: boolean_selector
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.5.2"
-  async:
+    version: "2.1.0"
+  characters:
     dependency: transitive
     description:
-      name: async
+      name: characters
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
-  boolean_selector:
+    version: "1.2.1"
+  charcode:
     dependency: transitive
     description:
-      name: boolean_selector
+      name: charcode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.5"
-  charcode:
+    version: "1.1.2"
+  clock:
     dependency: transitive
     description:
-      name: charcode
+      name: clock
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.2"
+    version: "1.1.1"
   collection:
     dependency: transitive
     description:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.14.11"
+    version: "1.16.0"
   convert:
     dependency: transitive
     description:
@@ -64,6 +64,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.1.3"
+  fake_async:
+    dependency: transitive
+    description:
+      name: fake_async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.1"
   fixnum:
     dependency: transitive
     description:
@@ -116,34 +123,34 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "3.1.3"
-  image:
+  matcher:
     dependency: transitive
     description:
-      name: image
+      name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.4"
-  matcher:
+    version: "0.12.12"
+  material_color_utilities:
     dependency: transitive
     description:
-      name: matcher
+      name: material_color_utilities
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.6"
+    version: "0.1.5"
   meta:
     dependency: transitive
     description:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.8"
+    version: "1.8.0"
   path:
     dependency: transitive
     description:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
+    version: "1.8.2"
   pedantic:
     dependency: transitive
     description:
@@ -151,13 +158,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.0+1"
-  petitparser:
-    dependency: transitive
-    description:
-      name: petitparser
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.4.0"
   protobuf:
     dependency: "direct main"
     description:
@@ -165,13 +165,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.1"
-  quiver:
-    dependency: transitive
-    description:
-      name: quiver
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.5"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -183,42 +176,42 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.5.5"
+    version: "1.9.0"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.3"
+    version: "1.10.0"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.0"
+    version: "2.1.0"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.5"
+    version: "1.1.1"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0"
+    version: "1.2.1"
   test_api:
     dependency: transitive
     description:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.11"
+    version: "0.4.12"
   typed_data:
     dependency: transitive
     description:
@@ -232,13 +225,6 @@ packages:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.8"
-  xml:
-    dependency: transitive
-    description:
-      name: xml
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.5.0"
+    version: "2.1.2"
 sdks:
-  dart: ">=2.4.0 <3.0.0"
+  dart: ">=2.17.0-0 <3.0.0"