diff --git a/example/pubspec.lock b/example/pubspec.lock
index 2d33f90..8b9aee9 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -176,7 +176,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "2.0.0-rc1"
+    version: "2.0.0"
   path:
     dependency: transitive
     description:
diff --git a/pubspec.lock b/pubspec.lock
index ae4c7f4..d1bb57e 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -28,14 +28,14 @@ packages:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.5.0-nullsafety.1"
+    version: "2.5.0"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0-nullsafety.1"
+    version: "2.1.0"
   build:
     dependency: transitive
     description:
@@ -63,14 +63,14 @@ packages:
       name: characters
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0-nullsafety.3"
+    version: "1.1.0"
   charcode:
     dependency: transitive
     description:
       name: charcode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0-nullsafety.1"
+    version: "1.2.0"
   cli_util:
     dependency: transitive
     description:
@@ -84,7 +84,7 @@ packages:
       name: clock
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0-nullsafety.1"
+    version: "1.1.0"
   code_builder:
     dependency: transitive
     description:
@@ -98,7 +98,7 @@ packages:
       name: collection
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.15.0-nullsafety.3"
+    version: "1.15.0"
   convert:
     dependency: transitive
     description:
@@ -133,7 +133,7 @@ packages:
       name: fake_async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0-nullsafety.1"
+    version: "1.2.0"
   file:
     dependency: transitive
     description:
@@ -220,14 +220,14 @@ packages:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.10-nullsafety.1"
+    version: "0.12.10"
   meta:
     dependency: transitive
     description:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0-nullsafety.3"
+    version: "1.3.0"
   mockito:
     dependency: "direct dev"
     description:
@@ -262,7 +262,7 @@ packages:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0-nullsafety.1"
+    version: "1.8.0"
   pedantic:
     dependency: transitive
     description:
@@ -316,42 +316,42 @@ packages:
       name: source_span
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0-nullsafety.2"
+    version: "1.8.0"
   stack_trace:
     dependency: transitive
     description:
       name: stack_trace
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.10.0-nullsafety.1"
+    version: "1.10.0"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0-nullsafety.1"
+    version: "2.1.0"
   string_scanner:
     dependency: transitive
     description:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.0-nullsafety.1"
+    version: "1.1.0"
   term_glyph:
     dependency: transitive
     description:
       name: term_glyph
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0-nullsafety.1"
+    version: "1.2.0"
   test_api:
     dependency: transitive
     description:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.19-nullsafety.2"
+    version: "0.2.19"
   timeago:
     dependency: "direct main"
     description:
@@ -365,14 +365,14 @@ packages:
       name: typed_data
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0-nullsafety.3"
+    version: "1.3.0"
   vector_math:
     dependency: transitive
     description:
       name: vector_math
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0-nullsafety.3"
+    version: "2.1.0"
   watcher:
     dependency: transitive
     description:
@@ -395,5 +395,5 @@ packages:
     source: hosted
     version: "2.2.1"
 sdks:
-  dart: ">=2.10.0 <2.11.0"
+  dart: ">=2.12.0-0.0 <3.0.0"
   flutter: ">=1.17.0"
diff --git a/pubspec.yaml b/pubspec.yaml
index a8a00c3..8c5d420 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: papercups_flutter
-description: Flutter implementation of the papercups.io chat widget, built with a webview and provides customization options. 
+description: Flutter implementation of the papercups.io chat widget. 
 version: 2.0.0
 homepage: https://github.com/aguilaair/papercups_flutter
 
diff --git a/test/papercups_flutter_test.dart b/test/papercups_flutter_test.dart
index 407732c..e42e457 100644
--- a/test/papercups_flutter_test.dart
+++ b/test/papercups_flutter_test.dart
@@ -245,10 +245,10 @@ void main() {
           "id": customer.id,
           "email": customer.email,
           "external_id": customer.externalId,
-          "created_at": customer.createdAt.toIso8601String(),
-          "first_seen": customer.firstSeen.toIso8601String(),
-          "last_seen": customer.lastSeen.toIso8601String(),
-          "updated_at": customer.updatedAt.toIso8601String(),
+          "created_at": customer.createdAt.toUtc().toIso8601String(),
+          "first_seen": customer.firstSeen.toUtc().toIso8601String(),
+          "last_seen": customer.lastSeen.toUtc().toIso8601String(),
+          "updated_at": customer.updatedAt.toUtc().toIso8601String(),
           "name": customer.name,
           "phone": customer.phone,
         }