diff --git a/ckanext/datavic_odp_theme/helpers.py b/ckanext/datavic_odp_theme/helpers.py
index 4a863aa..fb9e36d 100644
--- a/ckanext/datavic_odp_theme/helpers.py
+++ b/ckanext/datavic_odp_theme/helpers.py
@@ -256,7 +256,7 @@ def datavic_update_org_error_dict(
         error_dict["Logo"] = [(
             "Image format is not supported. "
             "Select an image in one of the following formats: "
-            "JPG, JPEG, GIF, PNG, BMP, SVG."
+            "JPG, JPEG, GIF, PNG, WEBP."
         )]
 
     return error_dict
diff --git a/ckanext/datavic_odp_theme/logic/validators.py b/ckanext/datavic_odp_theme/logic/validators.py
index 8487513..efed93e 100644
--- a/ckanext/datavic_odp_theme/logic/validators.py
+++ b/ckanext/datavic_odp_theme/logic/validators.py
@@ -40,14 +40,14 @@ def datavic_organization_upload(key, data, errors, context):
             (
                 "Image format is not supported. "
                 "Select an image in one of the following formats: "
-                "JPG, JPEG, GIF, PNG, BMP, SVG."
+                "JPG, JPEG, GIF, PNG, WEBP."
             )
         )
 
 
 def _is_valid_image_extension(mimetype: str) -> bool:
     """Check if the mimetype corresponds to a valid image extension."""
-    valid_extensions = ["jpg", "png", "jpeg", "gif", "bmp", "svg"]
+    valid_extensions = ["jpg", "png", "jpeg", "gif", "webp"]
     extension = mimetypes.guess_extension(mimetype)
     return extension and extension.strip(".").lower() in valid_extensions