diff --git a/samples/.env.apache.example b/samples/.env.apache.example
index ff0789b..1c5c705 100644
--- a/samples/.env.apache.example
+++ b/samples/.env.apache.example
@@ -136,8 +136,8 @@ CKANEXT__DCAT__RDF_PROFILES='euro_dcat_ap_2'
 CKANEXT__SPATIAL__SEARCH_BACKEND=solr-bbox
 CKAN__SPATIAL__SRID=3857
 CKANEXT__SPATIAL__COMMON_MAP__TYPE=custom
-CKANEXT__SPATIAL__COMMON_MAP__CUSTOM__URL=https://rts.larioja.org/mapa-base/rioja/{z}/{x}/{y}.png
-CKANEXT__SPATIAL__COMMON_MAP__ATTRIBUTION='<a href="https://www.scne.es/">SCNE</a>, bajo <a href="http://creativecommons.org/licenses/by/4.0>'
+CKANEXT__SPATIAL__COMMON_MAP__CUSTOM__URL=https://stamen-tiles-{s}.a.ssl.fastly.net/terrain/{z}/{x}/{y}.png
+CKANEXT__SPATIAL__COMMON_MAP__ATTRIBUTION='Map tiles by <a href="http://stamen.com">Stamen Design</a> (<a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>). Data by <a href="http://openstreetmap.org">OpenStreetMap</a> (<a href="http://creativecommons.org/licenses/by-sa/3.0">CC BY SA</a>)'
 
 # ckanext-geoview
 CKANEXT__GEOVIEW__GEOJSON__MAX_FILE_SIZE=100000000
diff --git a/samples/.env.localhost b/samples/.env.localhost
index 5346e05..a9e626a 100644
--- a/samples/.env.localhost
+++ b/samples/.env.localhost
@@ -144,8 +144,8 @@ CKANEXT__DCAT__RDF_PROFILES='euro_dcat_ap_2'
 CKANEXT__SPATIAL__SEARCH_BACKEND=solr-bbox
 CKAN__SPATIAL__SRID=3857
 CKANEXT__SPATIAL__COMMON_MAP__TYPE=custom
-CKANEXT__SPATIAL__COMMON_MAP__CUSTOM__URL=https://rts.larioja.org/mapa-base/rioja/{z}/{x}/{y}.png
-CKANEXT__SPATIAL__COMMON_MAP__ATTRIBUTION='<a href="https://www.scne.es/">SCNE</a>, bajo <a href="http://creativecommons.org/licenses/by/4.0>'
+CKANEXT__SPATIAL__COMMON_MAP__CUSTOM__URL=https://stamen-tiles-{s}.a.ssl.fastly.net/terrain/{z}/{x}/{y}.png
+CKANEXT__SPATIAL__COMMON_MAP__ATTRIBUTION='Map tiles by <a href="http://stamen.com">Stamen Design</a> (<a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>). Data by <a href="http://openstreetmap.org">OpenStreetMap</a> (<a href="http://creativecommons.org/licenses/by-sa/3.0">CC BY SA</a>)'
 
 # ckanext-geoview
 CKANEXT__GEOVIEW__GEOJSON__MAX_FILE_SIZE=100000000
diff --git a/samples/.env.nginx.example b/samples/.env.nginx.example
index 0b22171..15be727 100644
--- a/samples/.env.nginx.example
+++ b/samples/.env.nginx.example
@@ -136,8 +136,8 @@ CKANEXT__DCAT__RDF_PROFILES='euro_dcat_ap_2'
 CKANEXT__SPATIAL__SEARCH_BACKEND=solr-bbox
 CKAN__SPATIAL__SRID=3857
 CKANEXT__SPATIAL__COMMON_MAP__TYPE=custom
-CKANEXT__SPATIAL__COMMON_MAP__CUSTOM__URL=https://rts.larioja.org/mapa-base/rioja/{z}/{x}/{y}.png
-CKANEXT__SPATIAL__COMMON_MAP__ATTRIBUTION='<a href="https://www.scne.es/">SCNE</a>, bajo <a href="http://creativecommons.org/licenses/by/4.0>'
+CKANEXT__SPATIAL__COMMON_MAP__CUSTOM__URL=https://stamen-tiles-{s}.a.ssl.fastly.net/terrain/{z}/{x}/{y}.png
+CKANEXT__SPATIAL__COMMON_MAP__ATTRIBUTION='Map tiles by <a href="http://stamen.com">Stamen Design</a> (<a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>). Data by <a href="http://openstreetmap.org">OpenStreetMap</a> (<a href="http://creativecommons.org/licenses/by-sa/3.0">CC BY SA</a>)'
 
 # ckanext-geoview
 CKANEXT__GEOVIEW__GEOJSON__MAX_FILE_SIZE=100000000