diff --git a/MongoRepository/Repository/IRepository.cs b/MongoRepository/Repository/IRepository.cs
index 90852fa..d7787e9 100644
--- a/MongoRepository/Repository/IRepository.cs
+++ b/MongoRepository/Repository/IRepository.cs
@@ -5,6 +5,7 @@
     using System.Collections.Generic;
     using System.Linq;
     using System.Linq.Expressions;
+    using System.Threading.Tasks;
 
     /// <summary>
     /// IRepository definition.
@@ -45,6 +46,19 @@ public interface IRepository<T, TKey> : IQueryable<T>
         /// <param name="entities">The entities of type T.</param>
         void Add(IEnumerable<T> entities);
 
+        /// <summary>
+        /// Adds the new entity in the repository asynchronously.
+        /// </summary>
+        /// <param name="entity">The entity to add.</param>
+        /// <returns>The added entity including its new ObjectId.</returns>
+        Task<T> AddAsync(T entity);
+
+        /// <summary>
+        /// Adds the new entities in the repository asynchronously.
+        /// <param name="entities">The entities to add.</param>
+        /// </summary>
+        Task AddAsync(IEnumerable<T> entities);
+
         /// <summary>
         /// Upserts an entity.
         /// </summary>
@@ -52,35 +66,72 @@ public interface IRepository<T, TKey> : IQueryable<T>
         /// <returns>The updated entity.</returns>
         T Update(T entity);
 
+        /// <summary>
+        /// Upserts an entity asynchronously.
+        /// </summary>
+        /// <param name="entity">The entity.</param>
+        /// <returns>The updated entity.</returns>
+        Task<T> UpdateAsync(T entity);
+
         /// <summary>
         /// Upserts the entities.
         /// </summary>
         /// <param name="entities">The entities to update.</param>
         void Update(IEnumerable<T> entities);
 
+        /// <summary>
+        /// Upserts the entities asynchronously.
+        /// </summary>
+        /// <param name="entities">The entities to update.</param>
+        Task UpdateAsync(IEnumerable<T> entities);
+
+
         /// <summary>
         /// Deletes an entity from the repository by its id.
         /// </summary>
         /// <param name="id">The entity's id.</param>
         void Delete(TKey id);
 
+        /// <summary>
+        /// Deletes an entity from the repository by its ObjectId asynchronously.
+        /// </summary>
+        /// <param name="id">The ObjectId of the entity.</param>
+        void DeleteAsync(TKey id);
+
         /// <summary>
         /// Deletes the given entity.
         /// </summary>
         /// <param name="entity">The entity to delete.</param>
         void Delete(T entity);
 
+        /// <summary>
+        /// Deletes the given entity asynchronously.
+        /// </summary>
+        /// <param name="entity">The entity to delete.</param>
+        Task DeleteAsync(T entity);
+
         /// <summary>
         /// Deletes the entities matching the predicate.
         /// </summary>
         /// <param name="predicate">The expression.</param>
         void Delete(Expression<Func<T, bool>> predicate);
 
+        /// <summary>
+        /// Deletes the entities matching the predicate asynchronously.
+        /// </summary>
+        /// <param name="predicate">The expression.</param>
+        Task DeleteAsync(Expression<Func<T, bool>> predicate);
+
         /// <summary>
         /// Deletes all entities in the repository.
         /// </summary>
         void DeleteAll();
 
+        /// <summary>
+        /// Deletes all entities in the repository asynchronously.
+        /// </summary>
+        void DeleteAllAsync();
+
         /// <summary>
         /// Counts the total entities in the repository.
         /// </summary>
diff --git a/MongoRepository/Repository/MongoRepository.cs b/MongoRepository/Repository/MongoRepository.cs
index 787efe3..7898d36 100644
--- a/MongoRepository/Repository/MongoRepository.cs
+++ b/MongoRepository/Repository/MongoRepository.cs
@@ -6,6 +6,7 @@
     using System.Collections.Generic;
     using System.Linq;
     using System.Linq.Expressions;
+    using System.Threading.Tasks;
 
     /// <summary>
     /// Deals with entities in MongoDb.
@@ -131,6 +132,26 @@ public virtual void Add(IEnumerable<T> entities)
             this.collection.InsertMany(entities);
         }
 
+        /// <summary>
+        /// Adds the new entity in the repository asynchronously.
+        /// </summary>
+        /// <param name="entity">The entity T.</param>
+        /// <returns>The added entity including its new ObjectId.</returns>
+        public virtual async Task<T> AddAsync(T entity)
+        {
+            await this.collection.InsertOneAsync(entity);
+            return entity;
+        }
+
+        /// <summary>
+        /// Adds the new entities in the repository asynchronously.
+        /// </summary>
+        /// <param name="entities">The entities of type T.</param>
+        public virtual async Task AddAsync(IEnumerable<T> entities)
+        {
+            await this.collection.InsertManyAsync(entities);
+        }
+
         /// <summary>
         /// Upserts an entity.
         /// </summary>
@@ -145,6 +166,21 @@ public virtual T Update(T entity)
             return entity;
         }
 
+        /// <summary>
+        /// Upserts an entity asynchronously.
+        /// </summary>
+        /// <param name="entity">The entity.</param>
+        /// <returns>The updated entity.</returns>
+        public virtual async Task<T> UpdateAsync(T entity)
+        {
+            if (entity.Id == null)
+                await this.AddAsync(entity);
+            else
+                await this.collection.ReplaceOneAsync(GetIDFilter(entity.Id), entity, new UpdateOptions { IsUpsert = true });
+            return entity;
+
+        }
+
         /// <summary>
         /// Upserts the entities.
         /// </summary>
@@ -155,6 +191,20 @@ public virtual void Update(IEnumerable<T> entities)
                 this.collection.ReplaceOne(GetIDFilter(entity.Id), entity, new UpdateOptions { IsUpsert = true });
         }
 
+
+
+        /// <summary>
+        /// Upserts the entities asynchronously
+        /// </summary>
+        /// <param name="entities">The entities to update</param>
+        public virtual async Task UpdateAsync(IEnumerable<T> entities)
+        {
+            foreach (T entity in entities)
+                await this.collection.ReplaceOneAsync(GetIDFilter(entity.Id), entity, new UpdateOptions { IsUpsert = true });
+        }
+
+
+
         /// <summary>
         /// Deletes an entity from the repository by its id.
         /// </summary>
@@ -164,6 +214,16 @@ public virtual void Delete(TKey id)
             this.collection.DeleteOne(GetIDFilter(id));
         }
 
+        /// <summary>
+        /// Deletes an entity from the repository by its ObjectId asynchronously.
+        /// </summary>
+        /// <param name="id">The ObjectId of the entity.</param>
+        public virtual void DeleteAsync(TKey id)
+        {
+            var filter = Builders<T>.Filter.Where(x => x.Id.Equals(id));
+            this.collection.DeleteOneAsync(filter);
+        }
+
         /// <summary>
         /// Deletes an entity from the repository by its ObjectId.
         /// </summary>
@@ -182,6 +242,15 @@ public virtual void Delete(T entity)
             this.Delete(entity.Id);
         }
 
+        /// <summary>
+        /// Deletes the given entity asynchronously.
+        /// </summary>
+        /// <param name="entity">The entity to delete.</param>
+        public virtual async Task DeleteAsync(T entity)
+        {
+            await DeleteAsync(x => x.Id.Equals(entity.Id));
+        }
+
         /// <summary>
         /// Deletes the entities matching the predicate.
         /// </summary>
@@ -191,6 +260,16 @@ public virtual void Delete(Expression<Func<T, bool>> predicate)
             this.collection.DeleteMany<T>(predicate);
         }
 
+        /// <summary>
+        /// Deletes the entities matching the predicate asynchronously.
+        /// </summary>
+        /// <param name="predicate">The expression.</param>
+        public virtual async Task DeleteAsync(Expression<Func<T, bool>> predicate)
+        {
+            var filter = Builders<T>.Filter.Where(predicate);
+            await this.collection.DeleteManyAsync(filter);
+        }
+
         /// <summary>
         /// Deletes all entities in the repository.
         /// </summary>
@@ -199,6 +278,14 @@ public virtual void DeleteAll()
             this.collection.DeleteMany<T>(t => true);
         }
 
+        /// <summary>
+        /// Deletes all entities in the repository asynchronously.
+        /// </summary>
+        public virtual async void DeleteAllAsync()
+        {
+            await this.collection.DeleteManyAsync(x => true);
+        }
+
         /// <summary>
         /// Counts the total entities in the repository.
         /// </summary>
diff --git a/MongoRepositoryTests/RepoTests.cs b/MongoRepositoryTests/RepoTests.cs
index 7fa2100..6e41ee0 100644
--- a/MongoRepositoryTests/RepoTests.cs
+++ b/MongoRepositoryTests/RepoTests.cs
@@ -84,6 +84,56 @@ public void AddAndUpdateTest()
             Assert.IsTrue(_customerRepo.Exists(c => c.HomeAddress.Country == "Alaska"));
         }
 
+        [TestMethod]
+        public void AddAndUpdateAsyncTest()
+        {
+            IRepository<Customer> _customerRepo = new MongoRepository<Customer>();
+            IRepositoryManager<Customer> _customerMan = new MongoRepositoryManager<Customer>();
+
+            Assert.IsFalse(_customerMan.Exists);
+
+            var customer = new Customer();
+            customer.FirstName = "BobAsync";
+            customer.LastName = "Dillon";
+            customer.Phone = "0900999899";
+            customer.Email = "Bob.dil@snailmail.com";
+            customer.HomeAddress = new Address
+            {
+                Address1 = "North kingdom 15 west",
+                Address2 = "1 north way",
+                PostCode = "40990",
+                City = "George Town",
+                Country = "Alaska"
+            };
+
+            _customerRepo.AddAsync(customer).Wait();
+
+            Assert.IsTrue(_customerMan.Exists);
+
+            Assert.IsNotNull(customer.Id);
+
+            // fetch it back 
+            var alreadyAddedCustomer = _customerRepo.Where(c => c.FirstName == "BobAsync").Single();
+
+            Assert.IsNotNull(alreadyAddedCustomer);
+            Assert.AreEqual(customer.FirstName, alreadyAddedCustomer.FirstName);
+            Assert.AreEqual(customer.HomeAddress.Address1, alreadyAddedCustomer.HomeAddress.Address1);
+
+            alreadyAddedCustomer.Phone = "10110111";
+            alreadyAddedCustomer.Email = "dil.bob@fastmail.org";
+
+            _customerRepo.UpdateAsync(alreadyAddedCustomer).Wait();
+
+            // fetch by id now 
+            var updatedCustomer = _customerRepo.GetById(customer.Id);
+
+            Assert.IsNotNull(updatedCustomer);
+            Assert.AreEqual(alreadyAddedCustomer.Phone, updatedCustomer.Phone);
+            Assert.AreEqual(alreadyAddedCustomer.Email, updatedCustomer.Email);
+
+            Assert.IsTrue(_customerRepo.Exists(c => c.HomeAddress.Country == "Alaska"));
+        }
+
         [TestMethod]
         public void ComplexEntityTest()
         {