diff --git a/CHANGELOG.md b/CHANGELOG.md
index 79617892..400a8453 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,8 @@
 # Changelog
 
-## Unreleased
+## 4.1.1
 
--
+- fix: data escaped + (plus) was not parsed correctly, caused by [#68](https://github.com/skwasjer/MockHttp/pull/68). My apologies... :)
 
 ## v4.1.0
 
diff --git a/src/MockHttp/Http/DataEscapingHelper.cs b/src/MockHttp/Http/DataEscapingHelper.cs
index 2564f33a..18fd04ea 100644
--- a/src/MockHttp/Http/DataEscapingHelper.cs
+++ b/src/MockHttp/Http/DataEscapingHelper.cs
@@ -50,7 +50,7 @@ internal static IEnumerable<KeyValuePair<string, IEnumerable<string>>> Parse(str
 
     private static string UnescapeData(string v)
     {
-        return Uri.UnescapeDataString(v).Replace('+', ' ');
+        return Uri.UnescapeDataString(v?.Replace("+", "%20")!);
     }
 
     internal static string Format(IEnumerable<KeyValuePair<string, string>> items)
diff --git a/test/MockHttp.Tests/Http/DataEscapingHelperTests.cs b/test/MockHttp.Tests/Http/DataEscapingHelperTests.cs
index a15bf9ab..9f1a7236 100644
--- a/test/MockHttp.Tests/Http/DataEscapingHelperTests.cs
+++ b/test/MockHttp.Tests/Http/DataEscapingHelperTests.cs
@@ -54,9 +54,11 @@ public void Given_escapedString_contains_multiple_same_keys_when_parsing_should_
     [InlineData("key", "key", "a%20b", "a b")]
     [InlineData("key", "key", "a+b", "a b")]
     [InlineData("key", "key", "a b", "a b")]
+    [InlineData("key", "key", "a%2Bb", "a+b")]
     [InlineData("a%20b", "a b", "value", "value")]
     [InlineData("a+b", "a b", "value", "value")]
     [InlineData("a b", "a b", "value", "value")]
+    [InlineData("a%2Bb", "a+b", "value", "value")]
     public void Given_escapedString_contains_space_when_parsing_it_should_return_expected(string key, string expectedKey, string value, string expectedValue)
     {
         var expected = new Dictionary<string, IEnumerable<string>> { { expectedKey, new[] { expectedValue } } };