diff --git a/src/SeoToolkit.Umbraco.MetaFields.Core/Notifications/AfterMetaTagsNotification.cs b/src/SeoToolkit.Umbraco.MetaFields.Core/Notifications/AfterMetaTagsNotification.cs
index 6961dfd2..07e624c6 100644
--- a/src/SeoToolkit.Umbraco.MetaFields.Core/Notifications/AfterMetaTagsNotification.cs
+++ b/src/SeoToolkit.Umbraco.MetaFields.Core/Notifications/AfterMetaTagsNotification.cs
@@ -9,7 +9,7 @@ public class AfterMetaTagsNotification : INotification
     {
         public string ContentTypeAlias { get; }
         public MetaTagsModel MetaTags { get; }
-        public IPublishedContent Content { get; set; }
+        public IPublishedContent Content { get; }
 
         [Obsolete("This constructor is deprecated and will be removed in the next major release.")]
         public AfterMetaTagsNotification(string contentTypeAlias, MetaTagsModel metaTags)
diff --git a/src/SeoToolkit.Umbraco.MetaFields.Core/Notifications/BeforeMetaTagsNotification.cs b/src/SeoToolkit.Umbraco.MetaFields.Core/Notifications/BeforeMetaTagsNotification.cs
index bcacddc4..5cd5060e 100644
--- a/src/SeoToolkit.Umbraco.MetaFields.Core/Notifications/BeforeMetaTagsNotification.cs
+++ b/src/SeoToolkit.Umbraco.MetaFields.Core/Notifications/BeforeMetaTagsNotification.cs
@@ -9,7 +9,7 @@ public class BeforeMetaTagsNotification : INotification
     {
         public string ContentTypeAlias { get; }
         public MetaTagsModel MetaTags { get; }
-        public IPublishedContent Content { get; set; }
+        public IPublishedContent Content { get; }
 
         [Obsolete("This constructor is deprecated and will be removed in the next major release.")]
         public BeforeMetaTagsNotification(string contentTypeAlias, MetaTagsModel metaTags)