diff --git a/public/content/content.json b/public/content/content.json
index fe2fa8a050122fea570d2858b2b7c7512f9b3dc2..9a1d9325d9791ca589458ba1c09b60d67e236be7 100644
--- a/public/content/content.json
+++ b/public/content/content.json
@@ -245,7 +245,7 @@
       "project_year_start": "2022",
       "project_year_end": "2024",
       "project_is_on_going": true,
-      "imageLink": "imgs/thumbnails/3dps.jpg",
+      "imageLink": "imgs/thumbnails/citygml_workflow.jpg",
       "keywords": ["OGC", "3D GIS", "3D Tiles", "I3S", "gLTF"],
       "description_en": "List of the workflows for creating, developing, enriching the 3D city models in CityGML formats.",
       "description_de": "List of the workflows for creating, developing, enriching the 3D city models in CityGML formats."
diff --git a/public/imgs/thumbnails/citygml_workflow.jpg b/public/imgs/thumbnails/citygml_workflow.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..c696065d04c9b226f1468a202c627229c2c71e50
Binary files /dev/null and b/public/imgs/thumbnails/citygml_workflow.jpg differ