diff --git a/Src/Notion.Client/Models/PropertyValue/DatePropertyValue.cs b/Src/Notion.Client/Models/PropertyValue/DatePropertyValue.cs
index cc0818ae..aeb3cd8e 100644
--- a/Src/Notion.Client/Models/PropertyValue/DatePropertyValue.cs
+++ b/Src/Notion.Client/Models/PropertyValue/DatePropertyValue.cs
@@ -13,7 +13,7 @@ public class DatePropertyValue : PropertyValue
         /// <summary>
         /// Date
         /// </summary>
-        [JsonProperty("date")]
+        [JsonProperty("date", NullValueHandling = NullValueHandling.Include)]
         public Date Date { get; set; }
     }
 
diff --git a/Test/Notion.IntegrationTests/IPageClientTests.cs b/Test/Notion.IntegrationTests/IPageClientTests.cs
index ae1e317b..a2c73162 100644
--- a/Test/Notion.IntegrationTests/IPageClientTests.cs
+++ b/Test/Notion.IntegrationTests/IPageClientTests.cs
@@ -11,6 +11,7 @@ namespace Notion.IntegrationTests
     public class IPageClientTests
     {
         private readonly INotionClient _client;
+        private readonly string _databaseId;
 
         public IPageClientTests()
         {
@@ -20,6 +21,7 @@ public IPageClientTests()
             };
 
             _client = NotionClientFactory.Create(options);
+            _databaseId = Environment.GetEnvironmentVariable("DATABASE_ID") ?? "f86f2262-0751-40f2-8f63-e3f7a3c39fcb";
         }
 
         [Fact]
@@ -27,7 +29,7 @@ public async Task CreateAsync_CreatesANewPage()
         {
             PagesCreateParameters pagesCreateParameters = PagesCreateParametersBuilder.Create(new DatabaseParentInput
             {
-                DatabaseId = "f86f2262-0751-40f2-8f63-e3f7a3c39fcb"
+                DatabaseId = _databaseId
             })
             .AddProperty("Name", new TitlePropertyValue
             {
@@ -48,7 +50,7 @@ public async Task CreateAsync_CreatesANewPage()
 
             page.Should().NotBeNull();
             page.Parent.Should().BeOfType<DatabaseParent>().Which
-                .DatabaseId.Should().Be("f86f2262-0751-40f2-8f63-e3f7a3c39fcb");
+                .DatabaseId.Should().Be(_databaseId);
 
             page.Properties.Should().ContainKey("Name");
             page.Properties["Name"].Should().BeOfType<TitlePropertyValue>().Which
@@ -65,7 +67,7 @@ public async Task Bug_unable_to_create_page_with_select_property()
         {
             PagesCreateParameters pagesCreateParameters = PagesCreateParametersBuilder.Create(new DatabaseParentInput
             {
-                DatabaseId = "f86f2262-0751-40f2-8f63-e3f7a3c39fcb"
+                DatabaseId = _databaseId
             })
             .AddProperty("Name", new TitlePropertyValue
             {
@@ -93,7 +95,7 @@ public async Task Bug_unable_to_create_page_with_select_property()
 
             page.Should().NotBeNull();
             page.Parent.Should().BeOfType<DatabaseParent>().Which
-                .DatabaseId.Should().Be("f86f2262-0751-40f2-8f63-e3f7a3c39fcb");
+                .DatabaseId.Should().Be(_databaseId);
 
             page.Properties.Should().ContainKey("Name");
             page.Properties["Name"].Should().BeOfType<TitlePropertyValue>().Which
@@ -110,7 +112,7 @@ public async Task Test_RetrievePagePropertyItemAsync()
         {
             PagesCreateParameters pagesCreateParameters = PagesCreateParametersBuilder.Create(new DatabaseParentInput
             {
-                DatabaseId = "f86f2262-0751-40f2-8f63-e3f7a3c39fcb"
+                DatabaseId = _databaseId
             })
             .AddProperty("Name", new TitlePropertyValue
             {
@@ -155,5 +157,70 @@ public async Task Test_RetrievePagePropertyItemAsync()
                 Archived = true
             });
         }
+
+        [Fact]
+        public async Task Test_UpdatePageProperty_with_date_as_null()
+        {
+            // setup - add property to db and create a page with the property having a date
+
+            string datePropertyName = "Test Date Property";
+            var updateDatabaseParameters = new DatabasesUpdateParameters();
+            updateDatabaseParameters.Properties = new Dictionary<string, IUpdatePropertySchema>
+            {
+                { "Name", new TitleUpdatePropertySchema { Title = new Dictionary<string, object>() } },
+                { "Test Date Property", new DateUpdatePropertySchema{ Date = new Dictionary<string, object>() } }
+            };
+
+            PagesCreateParameters pagesCreateParameters = PagesCreateParametersBuilder.Create(new DatabaseParentInput
+            {
+                DatabaseId = _databaseId
+            })
+            .AddProperty("Name", new TitlePropertyValue
+            {
+                Title = new List<RichTextBase>
+                 {
+                     new RichTextText
+                     {
+                         Text = new Text
+                         {
+                             Content = "Test Page Title"
+                         }
+                     }
+                 }
+            })
+            .AddProperty(datePropertyName, new DatePropertyValue
+            {
+                Date = new Date()
+                {
+                    Start = Convert.ToDateTime("2020-12-08T12:00:00Z"),
+                    End = Convert.ToDateTime("2025-12-08T12:00:00Z")
+                }
+            })
+            .Build();
+
+            var updatedDb = await _client.Databases.UpdateAsync(_databaseId, updateDatabaseParameters);
+
+            var page = await _client.Pages.CreateAsync(pagesCreateParameters);
+
+            var setDate = page.Properties[datePropertyName] as DatePropertyValue;
+
+            setDate?.Date?.Start.Should().Be(Convert.ToDateTime("2020-12-08T12:00:00Z"));
+
+            // verify
+            IDictionary<string, PropertyValue> testProps = new Dictionary<string, PropertyValue>();
+            testProps.Add(datePropertyName, new DatePropertyValue() { Date = null });
+
+            var updatedPage = await _client.Pages.UpdateAsync(page.Id, new PagesUpdateParameters
+            {
+                Properties = testProps
+            });
+
+            var verifyDate = updatedPage.Properties[datePropertyName] as DatePropertyValue;
+
+            verifyDate?.Date.Should().BeNull();
+
+            //cleanup
+            await _client.Blocks.DeleteAsync(page.Id);
+        }
     }
 }