diff --git a/src/ReC.Application/Common/Behaviors/Action/PlaceholderExtensions.cs b/src/ReC.Application/Common/Behaviors/Action/PlaceholderExtensions.cs
index 4607664..2433dfb 100644
--- a/src/ReC.Application/Common/Behaviors/Action/PlaceholderExtensions.cs
+++ b/src/ReC.Application/Common/Behaviors/Action/PlaceholderExtensions.cs
@@ -18,7 +18,7 @@ public static partial class PlaceholderExtensions
     /// <exception cref="PlaceholderResolutionException">
     /// Thrown when a placeholder's column name cannot be resolved from any of the provided objects.
     /// </exception>
-    public static string ReplacePlaceholders(this string str, params object[] objects)
+    public static string ReplacePlaceholders(this string str, params object?[] objects)
     {
         return PlaceholderRegex().Replace(str, match =>
         {
@@ -29,6 +29,9 @@ public static partial class PlaceholderExtensions
 
             foreach (var obj in objects)
             {
+                if (obj is null)
+                    continue;
+
                 var value = obj.GetValueByColumnName(columnName);
                 if (value is not null)
                     return ToSqlLiteral(value);