diff --git a/Controllers/ResponseEnricher.cs b/Controllers/ResponseEnricher.cs
index 0ba829a..29e1f8b 100644
--- a/Controllers/ResponseEnricher.cs
+++ b/Controllers/ResponseEnricher.cs
@@ -64,6 +64,8 @@ public static class Responses
             //limit the name to 31 characters
             sheetName = name.Length > 31 ? name.Substring(0, 31) : name;
         }
+        //make sure sheet is only alphanumeric
+        sheetName = new string(sheetName.Where(char.IsLetterOrDigit).ToArray());
 
         var notebook = new XLWorkbook();
         var sheet = notebook.Worksheets.Add(sheetName);
diff --git a/Models/ApiKey.cs b/Models/ApiKey.cs
index 283e481..dddf54a 100644
--- a/Models/ApiKey.cs
+++ b/Models/ApiKey.cs
@@ -12,7 +12,7 @@ namespace NejCommon.Models;
 public partial class ApiKey : IApiKey
 {
     [AutoMapProperty("Response")]
-    public string Id { get; set; } = NanoidDotNet.Nanoid.Generate(size: 64);
+    public string Id { get; set; } = Nanoid.Nanoid.Generate(size: 64);
     [StandardText]
     [AutoMapProperty("Request")]
     public string Name { get; set; } = null!;
diff --git a/Services/ApiKeyProvider.cs b/Services/ApiKeyProvider.cs
index fd6049c..4757305 100644
--- a/Services/ApiKeyProvider.cs
+++ b/Services/ApiKeyProvider.cs
@@ -1,6 +1,5 @@
 using AspNetCore.Authentication.ApiKey;
 using Microsoft.EntityFrameworkCore;
-using NanoidDotNet;
 using NejCommon.Models;
 
 namespace NejCommon.Services;
@@ -39,5 +38,5 @@ public partial class ApiKeyProvider : IApiKeyProvider, IScopedService
         }
     }
 
-    public static string GenerateKey() => "nej-" + Nanoid.Generate(size: 256);
+    public static string GenerateKey() => "nej-" + Nanoid.Nanoid.Generate(size: 256);
 }
\ No newline at end of file