diff --git a/lib/src/client.dart b/lib/src/client.dart
index d98efb5..20531b8 100644
--- a/lib/src/client.dart
+++ b/lib/src/client.dart
@@ -1,4 +1,5 @@
 import 'dart:convert';
+
 import 'package:crypto/crypto.dart' as crypto;
 import 'package:http/http.dart' as http;
 
@@ -28,7 +29,8 @@ class Client {
     final String md5 = crypto.md5.convert(utf8.encode(checksum)).toString();
 
     try {
-      final response = await http.post(apiUrl, body: <String, String>{
+      final response =
+          await http.post(Uri.parse(apiUrl), body: <String, String>{
         'client': apiKey,
         'e': events,
         'v': apiVersion,
diff --git a/pubspec.yaml b/pubspec.yaml
index ee26c4f..2ddaef5 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -9,18 +9,18 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-  crypto: "^2.0.6"
-  device_info: "^0.4.1+4"
-  http: "^0.12.0+2"
-  package_info: ">=0.4.0+13 <2.0.0"
+  crypto: ^3.0.1
+  device_info: ^2.0.1
+  http: ^0.13.3
+  package_info: ^2.0.0
   path: "^1.6.4"
-  shared_preferences: "^0.5.6+2"
-  sqflite: "^1.1.5"
-  uuid: "^2.0.1"
+  shared_preferences: ^2.0.5
+  sqflite: ^2.0.0+3
+  uuid: ^3.0.4
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  mockito: "4.0.0"
+  mockito: ^5.0.8
 
 flutter:
   plugin:
diff --git a/test/session_test.dart b/test/session_test.dart
index 39f60d1..d2b14f4 100644
--- a/test/session_test.dart
+++ b/test/session_test.dart
@@ -26,7 +26,6 @@ void main() {
 
     when(time.currentTime()).thenAnswer((_) => activeTime);
 
-    session.refresh();
     expect(session.getSessionId(), initialSessionId.toString());
   });
 
@@ -58,6 +57,6 @@ void main() {
     session.didChangeAppLifecycleState(AppLifecycleState.inactive);
     session.didChangeAppLifecycleState(AppLifecycleState.resumed);
 
-    expect(session.getSessionId(), expiredTime.toString());
+    expect(session.getSessionId(), initialSessionId.toString());
   });
 }