diff --git a/src/WireMock.Net/Transformers/Scriban/WireMockListAccessor.cs b/src/WireMock.Net/Transformers/Scriban/WireMockListAccessor.cs
index 08af878e..2fdd4a39 100644
--- a/src/WireMock.Net/Transformers/Scriban/WireMockListAccessor.cs
+++ b/src/WireMock.Net/Transformers/Scriban/WireMockListAccessor.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using Scriban;
 using Scriban.Parsing;
@@ -50,6 +50,20 @@ namespace WireMock.Transformers.Scriban
         {
             throw new NotImplementedException();
         }
+
+        public bool TryGetItem(TemplateContext context, SourceSpan span, object target, object index, out object value)
+        {
+            throw new NotImplementedException();
+        }
+
+        public bool TrySetItem(TemplateContext context, SourceSpan span, object target, object index, object value)
+        {
+            throw new NotImplementedException();
+        }
+
+        public bool HasIndexer => throw new NotImplementedException();
+
+        public Type IndexType => throw new NotImplementedException();
         #endregion
     }
 }
\ No newline at end of file
diff --git a/src/WireMock.Net/Transformers/Scriban/WireMockTemplateContext.cs b/src/WireMock.Net/Transformers/Scriban/WireMockTemplateContext.cs
index 817a88c5..cd71285c 100644
--- a/src/WireMock.Net/Transformers/Scriban/WireMockTemplateContext.cs
+++ b/src/WireMock.Net/Transformers/Scriban/WireMockTemplateContext.cs
@@ -1,19 +1,15 @@
-using Scriban;
+using Scriban;
 using Scriban.Runtime;
 using WireMock.Types;
 
-namespace WireMock.Transformers.Scriban
-{
-    internal class WireMockTemplateContext: TemplateContext
-    {
-        protected override IObjectAccessor GetMemberAccessorImpl(object target)
-        {
-            if (target?.GetType().GetGenericTypeDefinition() == typeof(WireMockList<>))
-            {
-                return new WireMockListAccessor();
-            }
+namespace WireMock.Transformers.Scriban;
 
-            return base.GetMemberAccessorImpl(target);
-        }
+internal class WireMockTemplateContext : TemplateContext
+{
+    protected override IObjectAccessor GetMemberAccessorImpl(object target)
+    {
+        return target?.GetType().GetGenericTypeDefinition() == typeof(WireMockList<>) ?
+            new WireMockListAccessor() :
+            base.GetMemberAccessorImpl(target);
     }
 }
\ No newline at end of file
diff --git a/src/WireMock.Net/WireMock.Net.csproj b/src/WireMock.Net/WireMock.Net.csproj
index 69787ac9..0f042d25 100644
--- a/src/WireMock.Net/WireMock.Net.csproj
+++ b/src/WireMock.Net/WireMock.Net.csproj
@@ -127,7 +127,7 @@
     </ItemGroup>
 
     <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0' or '$(TargetFramework)' == 'netstandard2.1' ">
-        <PackageReference Include="Scriban.Signed" Version="3.3.2" />
+        <PackageReference Include="Scriban.Signed" Version="5.5.0" />
         <PackageReference Include="Microsoft.AspNetCore" Version="2.2.0" />
         <PackageReference Include="Nullable" Version="1.3.0" />
 
@@ -137,7 +137,7 @@
 
     <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp3.1' or '$(TargetFramework)' == 'net5.0' or '$(TargetFramework)' == 'net6.0' ">
         <FrameworkReference Include="Microsoft.AspNetCore.App" />
-        <PackageReference Include="Scriban.Signed" Version="3.3.2" />
+        <PackageReference Include="Scriban.Signed" Version="5.5.0" />
     </ItemGroup>
 
     <ItemGroup>
diff --git a/test/WireMock.Net.Tests/Serialization/CustomPathParamMatcher.cs b/test/WireMock.Net.Tests/Serialization/CustomPathParamMatcher.cs
index 1e4695c7..34fa6f58 100644
--- a/test/WireMock.Net.Tests/Serialization/CustomPathParamMatcher.cs
+++ b/test/WireMock.Net.Tests/Serialization/CustomPathParamMatcher.cs
@@ -41,7 +41,7 @@ public class CustomPathParamMatcher : IStringMatcher
         MatchOperator = matchOperator;
     }
 
-    public double IsMatch(string input)
+    public double IsMatch(string? input)
     {
         var inputParts = GetPathParts(input);
         if (inputParts.Length != _pathParts.Length)
@@ -97,8 +97,13 @@ public class CustomPathParamMatcher : IStringMatcher
 
     public MatchOperator MatchOperator { get; }
 
-    private static string[] GetPathParts(string path)
+    private static string[] GetPathParts(string? path)
     {
+        if (path is null)
+        {
+            return new string[0];
+        }
+
         var hashMarkIndex = path.IndexOf('#');
         if (hashMarkIndex != -1)
         {