diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 919f0c7..3813336 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -25,7 +25,7 @@ jobs:
       run:  dotnet build -c Release
 
     - name: Test
-      run:  dotnet test -p:ParallelizeTestCollections=false
+      run:  dotnet test --no-build
 
     - name: Pack
       run:  dotnet pack CocoCrawler/CocoCrawler.csproj -o nuget-release -c Release --no-build
diff --git a/CocoCrawler/Builders/PageCrawlJobBuilder.cs b/CocoCrawler/Builders/PageCrawlJobBuilder.cs
index 23f8d28..5a00b82 100644
--- a/CocoCrawler/Builders/PageCrawlJobBuilder.cs
+++ b/CocoCrawler/Builders/PageCrawlJobBuilder.cs
@@ -1,6 +1,4 @@
-using AngleSharp.Css;
-using AngleSharp.Css.Parser;
-using CocoCrawler.CrawlOutputs;
+using CocoCrawler.CrawlOutputs;
 using CocoCrawler.Exceptions;
 using CocoCrawler.Job;
 using CocoCrawler.Job.PageBrowserActions;
diff --git a/Tests/CocoCrawler.IntegrationTests/BrowserCollection.cs b/Tests/CocoCrawler.IntegrationTests/BrowserCollection.cs
new file mode 100644
index 0000000..0bdc70b
--- /dev/null
+++ b/Tests/CocoCrawler.IntegrationTests/BrowserCollection.cs
@@ -0,0 +1,6 @@
+namespace CocoCrawler.IntegrationTests;
+
+[CollectionDefinition(nameof(BrowserCollection))]
+public class BrowserCollection 
+{
+}
diff --git a/Tests/CocoCrawler.IntegrationTests/ConfigureEngine/CookiesTest.cs b/Tests/CocoCrawler.IntegrationTests/ConfigureEngine/CookiesTest.cs
index 034bb08..5242a4b 100644
--- a/Tests/CocoCrawler.IntegrationTests/ConfigureEngine/CookiesTest.cs
+++ b/Tests/CocoCrawler.IntegrationTests/ConfigureEngine/CookiesTest.cs
@@ -7,6 +7,7 @@
 
 namespace CocoCrawler.IntegrationTests.Engine;
 
+[Collection(nameof(BrowserCollection))]
 public class CookiesTest
 {
     private readonly WireMockServer _wireMockServer = WireMockServer.Start();
diff --git a/Tests/CocoCrawler.IntegrationTests/ConfigureEngine/ThrowOnBuilderExceptions.cs b/Tests/CocoCrawler.IntegrationTests/ConfigureEngine/ThrowOnBuilderExceptions.cs
index 6410647..b0dfd95 100644
--- a/Tests/CocoCrawler.IntegrationTests/ConfigureEngine/ThrowOnBuilderExceptions.cs
+++ b/Tests/CocoCrawler.IntegrationTests/ConfigureEngine/ThrowOnBuilderExceptions.cs
@@ -1,11 +1,11 @@
 using CocoCrawler.Builders;
 using CocoCrawler.Exceptions;
-using CocoCrawler.Scheduler;
 using FluentAssertions;
 using WireMock.Server;
 
 namespace CocoCrawler.IntegrationTests.Engine;
 
+[Collection(nameof(BrowserCollection))]
 public class ThrowOnBuilderExceptions
 {
     private readonly WireMockServer _wireMockServer = WireMockServer.Start();
diff --git a/Tests/CocoCrawler.IntegrationTests/ConfigureEngine/UserAgentTests.cs b/Tests/CocoCrawler.IntegrationTests/ConfigureEngine/UserAgentTests.cs
index 2d46b22..70686df 100644
--- a/Tests/CocoCrawler.IntegrationTests/ConfigureEngine/UserAgentTests.cs
+++ b/Tests/CocoCrawler.IntegrationTests/ConfigureEngine/UserAgentTests.cs
@@ -7,6 +7,7 @@
 
 namespace CocoCrawler.IntegrationTests.Engine;
 
+[Collection(nameof(BrowserCollection))]
 public class UserAgentTests
 {
     private readonly WireMockServer _wireMockServer = WireMockServer.Start();
diff --git a/Tests/CocoCrawler.IntegrationTests/ExtractListAndPaginate/ExtractListAndPaginateTests.cs b/Tests/CocoCrawler.IntegrationTests/ExtractListAndPaginate/ExtractListAndPaginateTests.cs
index e10717c..ca823a2 100644
--- a/Tests/CocoCrawler.IntegrationTests/ExtractListAndPaginate/ExtractListAndPaginateTests.cs
+++ b/Tests/CocoCrawler.IntegrationTests/ExtractListAndPaginate/ExtractListAndPaginateTests.cs
@@ -6,6 +6,7 @@
 
 namespace CocoCrawler.IntegrationTests.ExtractListAndPaginate;
 
+[Collection(nameof(BrowserCollection))]
 public class ExtractObjectAndPaginateTests
 {
     private readonly WireMockServer _wireMockServer = WireMockServer.Start(port: 9090);
diff --git a/Tests/CocoCrawler.IntegrationTests/OpenLinksExtractObjectAndPaginate/OpenLinksExtractObjectAndPaginate.cs b/Tests/CocoCrawler.IntegrationTests/OpenLinksExtractObjectAndPaginate/OpenLinksExtractObjectAndPaginate.cs
index bc75b5a..ac346ce 100644
--- a/Tests/CocoCrawler.IntegrationTests/OpenLinksExtractObjectAndPaginate/OpenLinksExtractObjectAndPaginate.cs
+++ b/Tests/CocoCrawler.IntegrationTests/OpenLinksExtractObjectAndPaginate/OpenLinksExtractObjectAndPaginate.cs
@@ -7,6 +7,7 @@
 
 namespace CocoCrawler.IntegrationTests.ExtractListAndPaginate;
 
+[Collection(nameof(BrowserCollection))]
 public class OpenLinksExtractObjectAndPaginate
 {
     private readonly WireMockServer _wireMockServer = WireMockServer.Start(port: 9010);