diff --git a/src/LinkDotNet.Blog.Web/Features/AboutMe/Components/Skill/SkillTable.razor b/src/LinkDotNet.Blog.Web/Features/AboutMe/Components/Skill/SkillTable.razor
index 346063b6..05e25239 100644
--- a/src/LinkDotNet.Blog.Web/Features/AboutMe/Components/Skill/SkillTable.razor
+++ b/src/LinkDotNet.Blog.Web/Features/AboutMe/Components/Skill/SkillTable.razor
@@ -51,7 +51,7 @@
     </table>
     @if (ShowAdminActions)
     {
-        <small for="skill-table">You can drag and drop your skills from one proficency to another</small>
+        <small for="skill-table">You can drag and drop your skills from one proficiency to another</small>
     }
 </div>
 @code {
diff --git a/src/LinkDotNet.Blog.Web/Features/Admin/Dashboard/Components/VisitCountPerPage.razor b/src/LinkDotNet.Blog.Web/Features/Admin/Dashboard/Components/VisitCountPerPage.razor
index eceeff7f..3b89447f 100644
--- a/src/LinkDotNet.Blog.Web/Features/Admin/Dashboard/Components/VisitCountPerPage.razor
+++ b/src/LinkDotNet.Blog.Web/Features/Admin/Dashboard/Components/VisitCountPerPage.razor
@@ -4,6 +4,7 @@
 @using LinkDotNet.Blog.Infrastructure.Persistence
 @using LinkDotNet.Blog.Infrastructure.Persistence.Sql
 @using LinkDotNet.Blog.Web.Features.Admin.Dashboard.Services
+@using System.Collections.Immutable
 @inject IRepository<BlogPost> BlogPostRepository
 @inject IRepository<UserRecord> UserRecordRepository
 
@@ -51,14 +52,14 @@
 @code {
 
     private Filter filter = new();
-    private IList<VisitCountPageData> visitData;
+    private IReadOnlyCollection<VisitCountPageData> visitData;
 
     protected override async Task OnInitializedAsync()
     {
         visitData = await LoadBlogPostInformationAsync();
     }
 
-    private async Task<List<VisitCountPageData>> LoadBlogPostInformationAsync()
+    private async Task<IReadOnlyCollection<VisitCountPageData>> LoadBlogPostInformationAsync()
     {
         var blogPostsTask = BlogPostRepository.GetAllByProjectionAsync(
             s => new { s.Id, s.Title, s.Likes });
@@ -81,7 +82,7 @@
                 Title = gp.First().bp.Title,
                 Likes = gp.First().bp.Likes,
                 ClickCount = gp.Count()
-            }).ToList();
+            }).ToImmutableArray();
         return visitCountPage;
     }
 
diff --git a/src/LinkDotNet.Blog.Web/Features/Admin/Sitemap/Services/SitemapService.cs b/src/LinkDotNet.Blog.Web/Features/Admin/Sitemap/Services/SitemapService.cs
index 8737a079..5a5779fc 100644
--- a/src/LinkDotNet.Blog.Web/Features/Admin/Sitemap/Services/SitemapService.cs
+++ b/src/LinkDotNet.Blog.Web/Features/Admin/Sitemap/Services/SitemapService.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Collections.Immutable;
 using System.Linq;
 using System.Threading.Tasks;
 using LinkDotNet.Blog.Domain;
@@ -49,7 +50,7 @@ private IEnumerable<SitemapUrl> CreateUrlsForBlogPosts(IEnumerable<BlogPost> blo
         {
             Location = $"{navigationManager.BaseUri}blogPost/{b.Id}",
             LastModified = b.UpdatedDate.ToString("yyyy-MM-dd"),
-        }).ToList();
+        }).ToImmutableArray();
     }
 
     private IEnumerable<SitemapUrl> CreateUrlsForTags(IEnumerable<BlogPost> blogPosts)
diff --git a/src/LinkDotNet.Blog.Web/Features/Archive/ArchivePage.razor b/src/LinkDotNet.Blog.Web/Features/Archive/ArchivePage.razor
index 370becc0..4bc48571 100644
--- a/src/LinkDotNet.Blog.Web/Features/Archive/ArchivePage.razor
+++ b/src/LinkDotNet.Blog.Web/Features/Archive/ArchivePage.razor
@@ -1,6 +1,7 @@
 @page "/archive"
 @using LinkDotNet.Blog.Infrastructure.Persistence
 @using LinkDotNet.Blog.Domain
+@using System.Collections.Immutable
 @inject IRepository<BlogPost> Repository
 
 <OgData Title="Archive"></OgData>
@@ -28,7 +29,7 @@
 </div >
 
 @code {
-    private List<IGrouping<int, BlogPostPerYear>> blogPostsPerYear;
+    private IReadOnlyCollection<IGrouping<int, BlogPostPerYear>> blogPostsPerYear;
     private int blogPostCount;
 
     protected override async Task OnInitializedAsync()
@@ -40,7 +41,7 @@
         blogPostsPerYear = blogPosts
             .GroupBy(r => r.UpdatedDate.Year)
             .OrderByDescending(r => r.Key)
-            .ToList();
+            .ToImmutableArray();
     }
 
     private sealed record BlogPostPerYear(string Id, string Title, DateTime UpdatedDate);