diff --git a/src/GitVersion.Core/Model/VersionVariablesJsonNumberConverter.cs b/src/GitVersion.Core/Model/VersionVariablesJsonNumberConverter.cs
index 5bd68e160a..6273f39be9 100644
--- a/src/GitVersion.Core/Model/VersionVariablesJsonNumberConverter.cs
+++ b/src/GitVersion.Core/Model/VersionVariablesJsonNumberConverter.cs
@@ -34,7 +34,7 @@ public override void Write(Utf8JsonWriter writer, string? value, JsonSerializerO
         {
             writer.WriteNullValue();
         }
-        else if (int.TryParse(value, out var number))
+        else if (long.TryParse(value, out var number))
         {
             writer.WriteNumberValue(number);
         }