diff --git a/pubspec.lock b/pubspec.lock
index b26276e..aee46cd 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -1,48 +1,41 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
-  archive:
-    dependency: transitive
-    description:
-      name: archive
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.13"
-  args:
-    dependency: transitive
-    description:
-      name: args
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.6.0"
   async:
     dependency: transitive
     description:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.1"
+    version: "2.10.0"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.0"
-  charcode:
+    version: "2.1.1"
+  characters:
     dependency: transitive
     description:
-      name: charcode
+      name: characters
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.3"
+    version: "1.2.1"
+  clock:
+    dependency: transitive
+    description:
+      name: clock
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.1"
   collection:
     dependency: transitive
     description:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.14.12"
+    version: "1.17.0"
   connectivity:
     dependency: "direct main"
     description:
@@ -64,20 +57,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.6"
-  convert:
-    dependency: transitive
-    description:
-      name: convert
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.1"
-  crypto:
-    dependency: transitive
-    description:
-      name: crypto
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.4"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -85,6 +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"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -101,21 +87,14 @@ packages:
       name: http
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.1"
+    version: "0.13.5"
   http_parser:
     dependency: transitive
     description:
       name: http_parser
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "3.1.4"
-  image:
-    dependency: transitive
-    description:
-      name: image
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.12"
+    version: "4.0.2"
   intl:
     dependency: "direct main"
     description:
@@ -123,41 +102,41 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.16.1"
-  matcher:
+  js:
     dependency: transitive
     description:
-      name: matcher
+      name: js
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.6"
-  meta:
+    version: "0.6.5"
+  matcher:
     dependency: transitive
     description:
-      name: meta
+      name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.8"
-  path:
+    version: "0.12.13"
+  material_color_utilities:
     dependency: transitive
     description:
-      name: path
+      name: material_color_utilities
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
-  pedantic:
+    version: "0.2.0"
+  meta:
     dependency: transitive
     description:
-      name: pedantic
+      name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.0"
-  petitparser:
+    version: "1.8.0"
+  path:
     dependency: transitive
     description:
-      name: petitparser
+      name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.4.0"
+    version: "1.8.2"
   plugin_platform_interface:
     dependency: transitive
     description:
@@ -165,13 +144,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.2"
-  quiver:
-    dependency: transitive
-    description:
-      name: quiver
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.1.3"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -183,63 +155,56 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.7.0"
+    version: "1.9.1"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.9.3"
+    version: "1.11.0"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.0"
+    version: "2.1.1"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.5"
+    version: "1.2.0"
   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: "0.2.15"
+    version: "0.4.16"
   typed_data:
     dependency: transitive
     description:
       name: typed_data
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.6"
+    version: "1.3.1"
   vector_math:
     dependency: transitive
     description:
       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: "3.6.1"
+    version: "2.1.4"
 sdks:
-  dart: ">=2.7.0 <3.0.0"
-  flutter: ">=1.12.13+hotfix.5 <2.0.0"
+  dart: ">=2.18.0 <3.0.0"
+  flutter: ">=1.12.13+hotfix.5"
diff --git a/pubspec.yaml b/pubspec.yaml
index 1817289..7cd4c97 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -28,7 +28,7 @@ dependencies:
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^0.1.3
-  http: ^0.12.1
+  http: ^0.13.5
   intl: ^0.16.1
   connectivity: ^0.4.8+6