diff --git a/Flurl.sln b/Flurl.sln
index 63ee2597..dd4c22c9 100644
--- a/Flurl.sln
+++ b/Flurl.sln
@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
-VisualStudioVersion = 15.0.26730.3
+VisualStudioVersion = 15.0.27130.2036
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Flurl", "src\Flurl\Flurl.csproj", "{117B6C6E-53F9-45AE-9439-F4FB7E21B116}"
 EndProject
diff --git a/Test/Flurl.Test/Http/SettingsExtensionsTests.cs b/Test/Flurl.Test/Http/SettingsExtensionsTests.cs
index 3b3b70c9..e1fd1bd5 100644
--- a/Test/Flurl.Test/Http/SettingsExtensionsTests.cs
+++ b/Test/Flurl.Test/Http/SettingsExtensionsTests.cs
@@ -38,12 +38,22 @@ public void can_set_header() {
 
 		[Test]
 		public void can_set_headers_from_anon_object() {
-			var sc = GetSettingsContainer().WithHeaders(new { a = "b", one = 2 });
+			// null values shouldn't be added
+			var sc = GetSettingsContainer().WithHeaders(new { a = "b", one = 2, three = (object)null });
 			Assert.AreEqual(2, sc.Headers.Count);
 			Assert.AreEqual("b", sc.Headers["a"]);
 			Assert.AreEqual(2, sc.Headers["one"]);
 		}
 
+		[Test]
+		public void can_remove_header_by_setting_null() {
+			var sc = GetSettingsContainer().WithHeaders(new { a = 1, b = 2 });
+			Assert.AreEqual(2, sc.Headers.Count);
+			sc.WithHeader("b", null);
+			Assert.AreEqual(1, sc.Headers.Count);
+			Assert.AreEqual("a", sc.Headers.Keys.Single());
+		}
+
 		[Test]
 		public void can_set_headers_from_dictionary() {
 			var sc = GetSettingsContainer().WithHeaders(new Dictionary<string, object> { { "a", "b" }, { "one", 2 } });
diff --git a/src/Flurl.Http/Flurl.Http.csproj b/src/Flurl.Http/Flurl.Http.csproj
index 330f12db..40542fbc 100644
--- a/src/Flurl.Http/Flurl.Http.csproj
+++ b/src/Flurl.Http/Flurl.Http.csproj
@@ -4,7 +4,7 @@
     <TargetFrameworks>net45;netstandard1.1;netstandard1.3;netstandard2.0;</TargetFrameworks>
     <GeneratePackageOnBuild>True</GeneratePackageOnBuild>
 	  <PackageId>Flurl.Http</PackageId>
-    <Version>2.2.0</Version>
+    <Version>2.2.1</Version>
     <Authors>Todd Menier</Authors>
     <Description>A fluent, portable, testable HTTP client library.</Description>
     <PackageProjectUrl>http://tmenier.github.io/Flurl</PackageProjectUrl>
diff --git a/src/Flurl.Http/HeaderExtensions.cs b/src/Flurl.Http/HeaderExtensions.cs
index 0d854d52..b2165ad2 100644
--- a/src/Flurl.Http/HeaderExtensions.cs
+++ b/src/Flurl.Http/HeaderExtensions.cs
@@ -21,7 +21,10 @@ public static class HeaderExtensions
 	    /// <param name="value">HTTP header value.</param>
 	    /// <returns>This IFlurlClient or IFlurlRequest.</returns>
 	    public static T WithHeader<T>(this T clientOrRequest, string name, object value) where T : IHttpSettingsContainer {
-		    clientOrRequest.Headers[name] = value;
+		    if (value == null && clientOrRequest.Headers.ContainsKey(name))
+			    clientOrRequest.Headers.Remove(name);
+			else if (value != null)
+			    clientOrRequest.Headers[name] = value;
 		    return clientOrRequest;
 	    }