diff --git a/src/Admin/Admin.csproj b/src/Admin/Admin.csproj
index d31bc79bd..d6a7d849b 100644
--- a/src/Admin/Admin.csproj
+++ b/src/Admin/Admin.csproj
@@ -18,6 +18,7 @@
   </Choose>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.Azure.Cosmos" Version="3.21.0" />
     <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="5.0.2" />
     <PackageReference Include="NewRelic.Agent" Version="8.41.0" />
   </ItemGroup>
diff --git a/src/Admin/Controllers/LogsController.cs b/src/Admin/Controllers/LogsController.cs
index 5ba80365a..716c5631c 100644
--- a/src/Admin/Controllers/LogsController.cs
+++ b/src/Admin/Controllers/LogsController.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
 using Bit.Admin.Models;
@@ -6,8 +7,8 @@ using Bit.Core.Settings;
 using Bit.Core.Utilities;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
-using Microsoft.Azure.Documents.Client;
-using Microsoft.Azure.Documents.Linq;
+using Microsoft.Azure.Cosmos;
+using Microsoft.Azure.Cosmos.Linq;
 using Serilog.Events;
 
 namespace Bit.Admin.Controllers
@@ -17,7 +18,7 @@ namespace Bit.Admin.Controllers
     public class LogsController : Controller
     {
         private const string Database = "Diagnostics";
-        private const string Collection = "Logs";
+        private const string Container = "Logs";
 
         private readonly GlobalSettings _globalSettings;
 
@@ -29,17 +30,18 @@ namespace Bit.Admin.Controllers
         public async Task<IActionResult> Index(string cursor = null, int count = 50,
             LogEventLevel? level = null, string project = null, DateTime? start = null, DateTime? end = null)
         {
-            var collectionLink = UriFactory.CreateDocumentCollectionUri(Database, Collection);
-            using (var client = new DocumentClient(new Uri(_globalSettings.DocumentDb.Uri),
+            using (var client = new CosmosClient(_globalSettings.DocumentDb.Uri,
                 _globalSettings.DocumentDb.Key))
             {
-                var options = new FeedOptions
-                {
-                    MaxItemCount = count,
-                    RequestContinuation = cursor
-                };
-
-                var query = client.CreateDocumentQuery<LogModel>(collectionLink, options).AsQueryable();
+                var cosmosContainer = client.GetContainer(Database, Container);
+                var query = cosmosContainer.GetItemLinqQueryable<LogModel>(
+                    requestOptions: new QueryRequestOptions()
+                    {
+                        MaxItemCount = count
+                    },
+                    continuationToken: cursor
+                ).AsQueryable();
+                
                 if (level.HasValue)
                 {
                     query = query.Where(l => l.Level == level.Value.ToString());
@@ -56,9 +58,8 @@ namespace Bit.Admin.Controllers
                 {
                     query = query.Where(l => l.Timestamp <= end.Value);
                 }
-
-                var docQuery = query.OrderByDescending(l => l.Timestamp).AsDocumentQuery();
-                var response = await docQuery.ExecuteNextAsync<LogModel>();
+                var feedIterator = query.OrderByDescending(l => l.Timestamp).ToFeedIterator();
+                var response = await feedIterator.ReadNextAsync();
 
                 return View(new LogsModel
                 {
@@ -69,24 +70,27 @@ namespace Bit.Admin.Controllers
                     Items = response.ToList(),
                     Count = count,
                     Cursor = cursor,
-                    NextCursor = response.ResponseContinuation
+                    NextCursor = response.ContinuationToken
                 });
             }
         }
 
         public async Task<IActionResult> View(Guid id)
         {
-            using (var client = new DocumentClient(new Uri(_globalSettings.DocumentDb.Uri),
+            using (var client = new CosmosClient(_globalSettings.DocumentDb.Uri,
                 _globalSettings.DocumentDb.Key))
             {
-                var uri = UriFactory.CreateDocumentUri(Database, Collection, id.ToString());
-                var response = await client.ReadDocumentAsync<LogDetailsModel>(uri);
-                if (response?.Document == null)
+                var cosmosContainer = client.GetContainer(Database, Container);
+                var query = cosmosContainer.GetItemLinqQueryable<LogDetailsModel>()
+                    .AsQueryable()
+                    .Where(l => l.Id == id.ToString());
+                
+                var response = await query.ToFeedIterator().ReadNextAsync();
+                if (response == null || response.Count == 0)
                 {
                     return RedirectToAction("Index");
                 }
-
-                return View(response.Document);
+                return View(response.First());
             }
         }
     }
diff --git a/src/Core/Core.csproj b/src/Core/Core.csproj
index cb635d7b8..a919cfc45 100644
--- a/src/Core/Core.csproj
+++ b/src/Core/Core.csproj
@@ -45,11 +45,11 @@
     <PackageReference Include="Serilog.AspNetCore" Version="3.4.0" />
     <PackageReference Include="Serilog.Extensions.Logging" Version="3.0.1" />
     <PackageReference Include="Serilog.Extensions.Logging.File" Version="2.0.0" />
-    <PackageReference Include="Serilog.Sinks.AzureDocumentDB" Version="3.8.0" />
     <PackageReference Include="Sentry.Serilog" Version="2.1.5" />
     <PackageReference Include="IdentityServer4" Version="4.0.4" />
     <PackageReference Include="Dapper" Version="2.0.35" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+    <PackageReference Include="Serilog.Sinks.AzureCosmosDB" Version="1.0.0" />
     <PackageReference Include="Serilog.Sinks.SyslogMessages" Version="1.0.5" />
     <PackageReference Include="System.Text.Json" Version="4.7.2" />
     <PackageReference Include="AspNetCoreRateLimit" Version="2.1.0" />
diff --git a/src/Core/Utilities/LoggerFactoryExtensions.cs b/src/Core/Utilities/LoggerFactoryExtensions.cs
index 0298766bb..0ccf3d615 100644
--- a/src/Core/Utilities/LoggerFactoryExtensions.cs
+++ b/src/Core/Utilities/LoggerFactoryExtensions.cs
@@ -63,8 +63,9 @@ namespace Bit.Core.Utilities
             if (CoreHelpers.SettingHasValue(globalSettings?.DocumentDb.Uri) &&
                 CoreHelpers.SettingHasValue(globalSettings?.DocumentDb.Key))
             {
-                config.WriteTo.AzureDocumentDB(new Uri(globalSettings.DocumentDb.Uri),
-                    globalSettings.DocumentDb.Key, timeToLive: TimeSpan.FromDays(7))
+                config.WriteTo.AzureCosmosDB(new Uri(globalSettings.DocumentDb.Uri),
+                    globalSettings.DocumentDb.Key, timeToLive: TimeSpan.FromDays(7),
+                    partitionKey: "_partitionKey")
                     .Enrich.FromLogContext()
                     .Enrich.WithProperty("Project", globalSettings.ProjectName);
             }