diff --git a/src/pdfviewer.c b/src/pdfviewer.c
index bbb5d1a..72a54ad 100644
--- a/src/pdfviewer.c
+++ b/src/pdfviewer.c
@@ -332,7 +332,7 @@ void pdfviewer_about(PDFviewer * pdfviewer)
 	desktop_about_dialog_set_name(pdfviewer->ab_window, PACKAGE);
 	desktop_about_dialog_set_version(pdfviewer->ab_window, VERSION);
 	desktop_about_dialog_set_website(pdfviewer->ab_window,
-			"http://www.defora.org/");
+			"https://www.defora.org/");
 	gtk_widget_show(pdfviewer->ab_window);
 }