diff --git a/crates/onenote-viewer/src/dialogs.rs b/crates/onenote-viewer/src/dialogs.rs
index 618bb70..b0d4125 100644
--- a/crates/onenote-viewer/src/dialogs.rs
+++ b/crates/onenote-viewer/src/dialogs.rs
@@ -27,6 +27,10 @@ pub(crate) fn present_about(parent_window: &gtk::ApplicationWindow) {
         .website_label("Project website")
         .system_information(system_information)
         .build();
+    dialog.add_credit_section(
+        "Core third-party dependency",
+        &["onenote.rs OneNote parser - originally authored by Markus Siemens"],
+    );
     dialog.add_css_class("settings-dialog");
     dialog.present();
 }