diff --git a/Directory.Build.props b/Directory.Build.props
index 2b63653b..9937770d 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -4,7 +4,7 @@
   </PropertyGroup>
 
   <PropertyGroup>
-    <VersionPrefix>1.0.18</VersionPrefix>
+    <VersionPrefix>1.0.19</VersionPrefix>
   </PropertyGroup>
 
   <Choose>
diff --git a/GitHubReleaseNotes.txt b/GitHubReleaseNotes.txt
index 860f0b5a..5dd7de2e 100644
--- a/GitHubReleaseNotes.txt
+++ b/GitHubReleaseNotes.txt
@@ -1,3 +1,3 @@
 https://github.com/StefH/GitHubReleaseNotes
 
-GitHubReleaseNotes.exe --output CHANGELOG.md --skip-empty-releases --version 1.0.18.0
\ No newline at end of file
+GitHubReleaseNotes.exe --output CHANGELOG.md --skip-empty-releases --version 1.0.19.0
\ No newline at end of file
diff --git a/examples/WireMock.Net.Console.Net452.Classic/MainApp.cs b/examples/WireMock.Net.Console.Net452.Classic/MainApp.cs
index 4c3ef47b..cb3d0a39 100644
--- a/examples/WireMock.Net.Console.Net452.Classic/MainApp.cs
+++ b/examples/WireMock.Net.Console.Net452.Classic/MainApp.cs
@@ -438,6 +438,15 @@ namespace WireMock.Net.ConsoleApplication
                     .WithBody("<xml>ok</xml>")
                 );
 
+            server.Given(Request.Create()
+                    .WithPath("/services/query/")
+                    .WithParam("q", "SELECT Id from User where username='user@gmail.com'")
+                    .UsingGet())
+                .RespondWith(Response.Create()
+                    .WithStatusCode(200)
+                    .WithHeader("Content-Type", "application/json")
+                    .WithBodyAsJson(new { Id = "5bdf076c-5654-4b3e-842c-7caf1fabf8c9" }));
+
             System.Console.WriteLine("Press any key to stop the server");
             System.Console.ReadKey();
             server.Stop();
diff --git a/src/WireMock.Net/RequestBuilders/Request.cs b/src/WireMock.Net/RequestBuilders/Request.cs
index 054f8d2d..3fa1b9f9 100644
--- a/src/WireMock.Net/RequestBuilders/Request.cs
+++ b/src/WireMock.Net/RequestBuilders/Request.cs
@@ -4,7 +4,6 @@ using System.Collections.ObjectModel;
 using System.Linq;
 using WireMock.Matchers;
 using WireMock.Matchers.Request;
-using WireMock.Util;
 using WireMock.Validation;
 
 namespace WireMock.RequestBuilders
diff --git a/src/WireMock.Net/RequestMessage.cs b/src/WireMock.Net/RequestMessage.cs
index 46583b43..f89da6a5 100644
--- a/src/WireMock.Net/RequestMessage.cs
+++ b/src/WireMock.Net/RequestMessage.cs
@@ -171,40 +171,7 @@ namespace WireMock
             Headers = headers?.ToDictionary(header => header.Key, header => new WireMockList<string>(header.Value));
             Cookies = cookies;
             RawQuery = WebUtility.UrlDecode(urlDetails.Url.Query);
-            Query = ParseQuery(RawQuery);
-        }
-
-        private static IDictionary<string, WireMockList<string>> ParseQuery(string queryString)
-        {
-            if (string.IsNullOrEmpty(queryString))
-            {
-                return null;
-            }
-
-            if (queryString.StartsWith("?"))
-            {
-                queryString = queryString.Substring(1);
-            }
-
-            return queryString.Split(new[] { '&' }, StringSplitOptions.RemoveEmptyEntries)
-                .Aggregate(new Dictionary<string, WireMockList<string>>(),
-                (dict, term) =>
-                {
-                    string[] parts = term.Split(new[] { '=' }, StringSplitOptions.RemoveEmptyEntries);
-                    string key = parts[0];
-                    if (!dict.ContainsKey(key))
-                    {
-                        dict.Add(key, new WireMockList<string>());
-                    }
-
-                    if (parts.Length == 2)
-                    {
-                        string[] values = parts[1].Split(new[] { "," }, StringSplitOptions.RemoveEmptyEntries);
-                        dict[key].AddRange(values);
-                    }
-
-                    return dict;
-                });
+            Query = QueryStringParser.Parse(RawQuery);
         }
 
         /// <summary>
diff --git a/src/WireMock.Net/Util/QueryStringParser.cs b/src/WireMock.Net/Util/QueryStringParser.cs
new file mode 100644
index 00000000..a512a1b1
--- /dev/null
+++ b/src/WireMock.Net/Util/QueryStringParser.cs
@@ -0,0 +1,41 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace WireMock.Util
+{
+    /// <summary>
+    /// Based on https://stackoverflow.com/questions/659887/get-url-parameters-from-a-string-in-net
+    /// </summary>
+    internal static class QueryStringParser
+    {
+        public static IDictionary<string, WireMockList<string>> Parse(string queryString)
+        {
+            if (string.IsNullOrEmpty(queryString))
+            {
+                return new Dictionary<string, WireMockList<string>>();
+            }
+
+            string[] JoinParts(string[] parts)
+            {
+                if (parts.Length > 2)
+                {
+                    return new[] { string.Join("=", parts, 1, parts.Length - 1) };
+                }
+
+                if (parts.Length > 1)
+                {
+                    return parts[1].Split(new[] { "," }, StringSplitOptions.RemoveEmptyEntries); // support "?key=1,2"
+                }
+
+                return new string[0];
+            }
+
+            return queryString.TrimStart('?')
+                .Split(new[] { '&', ';' }, StringSplitOptions.RemoveEmptyEntries) // Support "?key=value;key=anotherValue" and "?key=value&key=anotherValue"
+                .Select(parameter => parameter.Split(new[] { '=' }, StringSplitOptions.RemoveEmptyEntries))
+                .GroupBy(parts => parts[0], JoinParts)
+                .ToDictionary(grouping => grouping.Key, grouping => new WireMockList<string>(grouping.SelectMany(x => x)));
+        }
+    }
+}
\ No newline at end of file
diff --git a/test/WireMock.Net.Tests/Util/QueryStringParserTests.cs b/test/WireMock.Net.Tests/Util/QueryStringParserTests.cs
new file mode 100644
index 00000000..799c2940
--- /dev/null
+++ b/test/WireMock.Net.Tests/Util/QueryStringParserTests.cs
@@ -0,0 +1,210 @@
+using FluentAssertions;
+using System.Collections.Generic;
+using WireMock.Util;
+using Xunit;
+
+namespace WireMock.Net.Tests.Util
+{
+    public class QueryStringParserTests
+    {
+        [Fact]
+        public void Parse_WithNullString()
+        {
+            // Assign
+            string query = null;
+
+            // Act
+            var result = QueryStringParser.Parse(query);
+
+            // Assert
+            result.Should().Equal(new Dictionary<string, WireMockList<string>>());
+        }
+
+        [Fact]
+        public void Parse_WithEmptyString()
+        {
+            // Assign
+            string query = "";
+
+            // Act
+            var result = QueryStringParser.Parse(query);
+
+            // Assert
+            result.Should().Equal(new Dictionary<string, WireMockList<string>>());
+        }
+
+        [Fact]
+        public void Parse_WithQuestionMark()
+        {
+            // Assign
+            string query = "?";
+
+            // Act
+            var result = QueryStringParser.Parse(query);
+
+            // Assert
+            result.Should().Equal(new Dictionary<string, WireMockList<string>>());
+        }
+
+        [Fact]
+        public void Parse_With1Param()
+        {
+            // Assign
+            string query = "?key=bla/blub.xml";
+
+            // Act
+            var result = QueryStringParser.Parse(query);
+
+            // Assert
+            result.Count.Should().Be(1);
+            result["key"].Should().Equal(new WireMockList<string>("bla/blub.xml"));
+        }
+
+        [Fact]
+        public void Parse_With2Params()
+        {
+            // Assign
+            string query = "?x=1&y=2";
+
+            // Act
+            var result = QueryStringParser.Parse(query);
+
+            // Assert
+            result.Count.Should().Be(2);
+            result["x"].Should().Equal(new WireMockList<string>("1"));
+            result["y"].Should().Equal(new WireMockList<string>("2"));
+        }
+
+        [Fact]
+        public void Parse_With1ParamNoValue()
+        {
+            // Assign
+            string query = "?empty";
+
+            // Act
+            var result = QueryStringParser.Parse(query);
+
+            // Assert
+            result.Count.Should().Be(1);
+            result["empty"].Should().Equal(new WireMockList<string>());
+        }
+
+        [Fact]
+        public void Parse_With1ParamNoValueWithEqualSign()
+        {
+            // Assign
+            string query = "?empty=";
+
+            // Act
+            var result = QueryStringParser.Parse(query);
+
+            // Assert
+            result.Count.Should().Be(1);
+            result["empty"].Should().Equal(new WireMockList<string>());
+        }
+
+        [Fact]
+        public void Parse_With1ParamAndJustAndSign()
+        {
+            // Assign
+            string query = "?key=1&";
+
+            // Act
+            var result = QueryStringParser.Parse(query);
+
+            // Assert
+            result.Count.Should().Be(1);
+            result["key"].Should().Equal(new WireMockList<string>("1"));
+        }
+
+        [Fact]
+        public void Parse_With2ParamsAndWhereOneHasAQuestion()
+        {
+            // Assign
+            string query = "?key=value?&b=c";
+
+            // Act
+            var result = QueryStringParser.Parse(query);
+
+            // Assert
+            result.Count.Should().Be(2);
+            result["key"].Should().Equal(new WireMockList<string>("value?"));
+            result["b"].Should().Equal(new WireMockList<string>("c"));
+        }
+
+        [Fact]
+        public void Parse_With1ParamWithEqualSign()
+        {
+            // Assign
+            string query = "?key=value=what";
+
+            // Act
+            var result = QueryStringParser.Parse(query);
+
+            // Assert
+            result.Count.Should().Be(1);
+            result["key"].Should().Equal(new WireMockList<string>("value=what"));
+        }
+
+        [Fact]
+        public void Parse_WithMultipleParamWithSameKeySeparatedBySemiColon()
+        {
+            // Assign
+            string query = "?key=value;key=anotherValue";
+
+            // Act
+            var result = QueryStringParser.Parse(query);
+
+            // Assert
+            result.Count.Should().Be(1);
+            result["key"].Should().Equal(new WireMockList<string>(new[] { "value", "anotherValue" }));
+        }
+
+        [Fact]
+        public void Parse_With1ParamContainingComma()
+        {
+            // Assign
+            string query = "?key=1,2&key=3";
+
+            // Act
+            var result = QueryStringParser.Parse(query);
+
+            // Assert
+            result.Count.Should().Be(1);
+            result["key"].Should().Equal(new WireMockList<string>(new[] { "1", "2", "3" }));
+        }
+
+        [Fact]
+        public void Parse_WithMultipleParamWithSameKey()
+        {
+            // Assign
+            string query = "?key=value&key=anotherValue";
+
+            // Act
+            var result = QueryStringParser.Parse(query);
+
+            // Assert
+            result.Count.Should().Be(1);
+            result["key"].Should().Equal(new WireMockList<string>(new[] { "value", "anotherValue" }));
+        }
+
+        [Fact]
+        public void Parse_WithComplex()
+        {
+            // Assign
+            string query = "?q=energy+edge&rls=com.microsoft:en-au&ie=UTF-8&oe=UTF-8&startIndex=&startPage=1%22";
+
+            // Act
+            var result = QueryStringParser.Parse(query);
+
+            // Assert
+            result.Count.Should().Be(6);
+            result["q"].Should().Equal(new WireMockList<string>("energy+edge"));
+            result["rls"].Should().Equal(new WireMockList<string>("com.microsoft:en-au"));
+            result["ie"].Should().Equal(new WireMockList<string>("UTF-8"));
+            result["oe"].Should().Equal(new WireMockList<string>("UTF-8"));
+            result["startIndex"].Should().Equal(new WireMockList<string>());
+            result["startPage"].Should().Equal(new WireMockList<string>("1%22"));
+        }
+    }
+}
\ No newline at end of file
diff --git a/test/WireMock.Net.Tests/WireMock.Net.Tests.csproj b/test/WireMock.Net.Tests/WireMock.Net.Tests.csproj
index 6936f5e1..26b90ea4 100644
--- a/test/WireMock.Net.Tests/WireMock.Net.Tests.csproj
+++ b/test/WireMock.Net.Tests/WireMock.Net.Tests.csproj
@@ -34,8 +34,8 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
+    <PackageReference Include="FluentAssertions" Version="5.7.0" />
     <PackageReference Include="System.Threading" Version="4.3.0" />
-
     <PackageReference Include="RestEase" Version="1.4.7" />
     <PackageReference Include="RandomDataGenerator.Net" Version="1.0.8" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0" />