diff --git a/pubspec.lock b/pubspec.lock
index 8f17bf4..65655aa 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -21,14 +21,14 @@ packages:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.2.0"
+    version: "2.10.0"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "2.1.1"
   build:
     dependency: transitive
     description:
@@ -77,7 +77,7 @@ packages:
       name: built_collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.2.2"
+    version: "4.3.2"
   built_value:
     dependency: transitive
     description:
@@ -85,6 +85,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "6.6.0"
+  characters:
+    dependency: transitive
+    description:
+      name: characters
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.1"
   charcode:
     dependency: transitive
     description:
@@ -92,6 +99,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.2"
+  clock:
+    dependency: transitive
+    description:
+      name: clock
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.1"
   code_builder:
     dependency: transitive
     description:
@@ -105,7 +119,7 @@ packages:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.14.11"
+    version: "1.17.0"
   convert:
     dependency: transitive
     description:
@@ -113,13 +127,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.1"
-  cookie_jar:
-    dependency: transitive
-    description:
-      name: cookie_jar
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.0"
   crypto:
     dependency: transitive
     description:
@@ -154,7 +161,14 @@ packages:
       name: dio
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.7"
+    version: "3.0.10"
+  fake_async:
+    dependency: transitive
+    description:
+      name: fake_async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.1"
   fixnum:
     dependency: transitive
     description:
@@ -241,7 +255,7 @@ packages:
       name: js
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.6.1+1"
+    version: "0.6.5"
   json_annotation:
     dependency: transitive
     description:
@@ -276,14 +290,21 @@ packages:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.5"
+    version: "0.12.13"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.0"
   meta:
     dependency: transitive
     description:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.6"
+    version: "1.8.0"
   mime:
     dependency: transitive
     description:
@@ -318,7 +339,7 @@ packages:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.2"
+    version: "1.8.2"
   path_provider:
     dependency: "direct main"
     description:
@@ -400,7 +421,7 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.5.5"
+    version: "1.9.1"
   sqflite:
     dependency: "direct main"
     description:
@@ -414,14 +435,14 @@ packages:
       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"
   stream_transform:
     dependency: transitive
     description:
@@ -435,7 +456,7 @@ packages:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.4"
+    version: "1.2.0"
   synchronized:
     dependency: transitive
     description:
@@ -449,14 +470,14 @@ packages:
       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: "0.2.5"
+    version: "0.4.16"
   timing:
     dependency: transitive
     description:
@@ -484,7 +505,7 @@ packages:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.8"
+    version: "2.1.4"
   watcher:
     dependency: transitive
     description:
@@ -507,5 +528,5 @@ packages:
     source: hosted
     version: "2.1.15"
 sdks:
-  dart: ">=2.3.0 <3.0.0"
-  flutter: ">=1.5.0 <2.0.0"
+  dart: ">=2.18.0 <3.0.0"
+  flutter: ">=1.5.0"
diff --git a/pubspec.yaml b/pubspec.yaml
index 6e1267a..ec9149f 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -18,7 +18,7 @@ dependencies:
   rxdart: ^0.22.0
 
   # A powerful Http client for Dart.
-  dio: ^2.1.7
+  dio: ">=2.1.7 <6.0.0"
 
   # Automatically generate code for converting to and from JSON
   json_serializable: ^3.0.0