diff --git a/ProjectLighthouse.Tests/LighthouseTest.cs b/ProjectLighthouse.Tests/LighthouseTest.cs
index f9225c16..4f635259 100644
--- a/ProjectLighthouse.Tests/LighthouseTest.cs
+++ b/ProjectLighthouse.Tests/LighthouseTest.cs
@@ -1,3 +1,4 @@
+using System.Diagnostics.CodeAnalysis;
 using System.IO;
 using System.Net.Http;
 using System.Threading.Tasks;
@@ -8,6 +9,7 @@ using ProjectLighthouse.Serialization;
 using ProjectLighthouse.Types;
 
 namespace ProjectLighthouse.Tests {
+    [SuppressMessage("ReSharper", "UnusedMember.Global")]
     public class LighthouseTest {
         public readonly TestServer Server;
         public readonly HttpClient Client;
diff --git a/ProjectLighthouse.Tests/Tests/MatchTests.cs b/ProjectLighthouse.Tests/Tests/MatchTests.cs
index 731abab2..4d82e285 100644
--- a/ProjectLighthouse.Tests/Tests/MatchTests.cs
+++ b/ProjectLighthouse.Tests/Tests/MatchTests.cs
@@ -4,11 +4,10 @@ using System.Threading;
 using System.Threading.Tasks;
 using ProjectLighthouse.Types;
 using Xunit;
-using Xunit.Abstractions;
 
 namespace ProjectLighthouse.Tests {
     public class MatchTests : LighthouseTest {
-        private static SemaphoreSlim semaphore = new(1, 1);
+        private static readonly SemaphoreSlim semaphore = new(1, 1);
 
         [DatabaseFact]
         public async Task ShouldReturnOk() {
diff --git a/ProjectLighthouse/Database.cs b/ProjectLighthouse/Database.cs
index 0cd18e70..80adc373 100644
--- a/ProjectLighthouse/Database.cs
+++ b/ProjectLighthouse/Database.cs
@@ -31,7 +31,7 @@ namespace ProjectLighthouse {
             this.Locations.Add(l); // add to table
             await this.SaveChangesAsync(); // saving to the database returns the id and sets it on this entity
 
-            user = new() {
+            user = new User {
                 Username = username,
                 LocationId = l.Id,
                 Biography = username + " hasn't introduced themselves yet.",
diff --git a/ProjectLighthouse/Helpers/HashHelper.cs b/ProjectLighthouse/Helpers/HashHelper.cs
index d441d1c2..46e87e38 100644
--- a/ProjectLighthouse/Helpers/HashHelper.cs
+++ b/ProjectLighthouse/Helpers/HashHelper.cs
@@ -1,9 +1,11 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Security.Cryptography;
 using System.Text;
 
 namespace ProjectLighthouse.Helpers {
+    [SuppressMessage("ReSharper", "UnusedMember.Global")]
     public static class HashHelper {
 //        private static readonly SHA1 sha1 = SHA1.Create();
         private static readonly SHA256 sha256 = SHA256.Create();