diff --git a/src/FilterLists.Agent/Core/GitHub/IIssuesRepository.cs b/src/FilterLists.Agent/Core/GitHub/IIssuesRepository.cs
index f734b3683..f381b4d61 100644
--- a/src/FilterLists.Agent/Core/GitHub/IIssuesRepository.cs
+++ b/src/FilterLists.Agent/Core/GitHub/IIssuesRepository.cs
@@ -6,7 +6,7 @@ namespace FilterLists.Agent.Core.GitHub
 {
     public interface IIssuesRepository
     {
-        Task<IReadOnlyList<Issue>> GetAllIssuesAsync(RepositoryIssueRequest repositoryIssueRequest);
+        Task<IEnumerable<Issue>> GetAllIssuesAsync(RepositoryIssueRequest repositoryIssueRequest);
 
         Task<Issue> CreateIssueAsync(NewIssue newIssue);
 
diff --git a/src/FilterLists.Agent/Extensions/ReadOnlyListExtensions.cs b/src/FilterLists.Agent/Extensions/ReadOnlyListExtensions.cs
deleted file mode 100644
index 7ec543640..000000000
--- a/src/FilterLists.Agent/Extensions/ReadOnlyListExtensions.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-using System.Collections.Generic;
-
-namespace FilterLists.Agent.Extensions
-{
-    public static class ReadOnlyListExtensions
-    {
-        public static T FirstOrDefault<T>(this IReadOnlyList<T> list)
-        {
-            return list.Count == 0 ? default! : list[0];
-        }
-    }
-}
\ No newline at end of file
diff --git a/src/FilterLists.Agent/Features/Urls/CloseUrlValidationIssue.cs b/src/FilterLists.Agent/Features/Urls/CloseUrlValidationIssue.cs
index 30b302720..48ec2e641 100644
--- a/src/FilterLists.Agent/Features/Urls/CloseUrlValidationIssue.cs
+++ b/src/FilterLists.Agent/Features/Urls/CloseUrlValidationIssue.cs
@@ -1,7 +1,7 @@
-using System.Threading;
+using System.Linq;
+using System.Threading;
 using System.Threading.Tasks;
 using FilterLists.Agent.Core.GitHub;
-using FilterLists.Agent.Extensions;
 using MediatR;
 using Octokit;
 
diff --git a/src/FilterLists.Agent/Features/Urls/CreateOrUpdateUrlValidationIssue.cs b/src/FilterLists.Agent/Features/Urls/CreateOrUpdateUrlValidationIssue.cs
index 3da6ea366..16fedd9ca 100644
--- a/src/FilterLists.Agent/Features/Urls/CreateOrUpdateUrlValidationIssue.cs
+++ b/src/FilterLists.Agent/Features/Urls/CreateOrUpdateUrlValidationIssue.cs
@@ -1,9 +1,9 @@
 using System.Collections.Generic;
+using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using FilterLists.Agent.Core.GitHub;
 using FilterLists.Agent.Core.Urls;
-using FilterLists.Agent.Extensions;
 using MediatR;
 using Octokit;
 
diff --git a/src/FilterLists.Agent/Infrastructure/GitHub/IssuesRepository.cs b/src/FilterLists.Agent/Infrastructure/GitHub/IssuesRepository.cs
index 7adb160c5..8245fc0ff 100644
--- a/src/FilterLists.Agent/Infrastructure/GitHub/IssuesRepository.cs
+++ b/src/FilterLists.Agent/Infrastructure/GitHub/IssuesRepository.cs
@@ -25,7 +25,7 @@ public IssuesRepository(IGitHubClient gitHubClient, IOptions<GitHubSettings> git
             _logger = logger;
         }
 
-        public async Task<IReadOnlyList<Issue>> GetAllIssuesAsync(RepositoryIssueRequest repositoryIssueRequest)
+        public async Task<IEnumerable<Issue>> GetAllIssuesAsync(RepositoryIssueRequest repositoryIssueRequest)
         {
             try
             {
diff --git a/tests/FilterLists.Agent.Tests/Extensions/ReadOnlyListExtensionsTests.cs b/tests/FilterLists.Agent.Tests/Extensions/ReadOnlyListExtensionsTests.cs
deleted file mode 100644
index 0dadc40ee..000000000
--- a/tests/FilterLists.Agent.Tests/Extensions/ReadOnlyListExtensionsTests.cs
+++ /dev/null
@@ -1,33 +0,0 @@
-using System.Collections.Generic;
-using FilterLists.Agent.Extensions;
-using Xunit;
-
-namespace FilterLists.Agent.Tests.Extensions
-{
-    public class ReadOnlyListExtensionsTests
-    {
-        [Fact]
-        public void FirstOrDefault_WithEmptyList_ReturnsDefault()
-        {
-            var list = (IReadOnlyList<int>)new List<int>();
-            var sut = list.FirstOrDefault();
-            Assert.Equal(default, sut);
-        }
-
-        [Fact]
-        public void FirstOrDefault_WithOneListElement_ReturnsFirstListElement()
-        {
-            var list = (IReadOnlyList<int>)new List<int> {0};
-            var sut = list.FirstOrDefault();
-            Assert.Equal(0, sut);
-        }
-
-        [Fact]
-        public void FirstOrDefault_WithMoreThanOneListElement_ReturnsFirstListElement()
-        {
-            var list = (IReadOnlyList<int>)new List<int> {1, 2, 3};
-            var sut = list.FirstOrDefault();
-            Assert.Equal(1, sut);
-        }
-    }
-}
\ No newline at end of file