diff --git a/CITATION.cff b/CITATION.cff
index 9196d22..31cf713 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -8,7 +8,7 @@ message: 'To cite package "cartography" in publications use:'
 type: software
 license: GPL-3.0-only
 title: 'cartography: Thematic Cartography'
-version: 3.1.4
+version: 3.1.5
 doi: 10.21105/joss.00054
 abstract: Create and integrate maps in your R workflow. This package helps to design
   cartographic representations such as proportional symbols, choropleth, typology,
diff --git a/DESCRIPTION b/DESCRIPTION
index c2fb327..97596fd 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: cartography
 Title: Thematic Cartography
-Version: 3.1.4
+Version: 3.1.5
 Authors@R: c(
       person("Timothée", "Giraud", 
         email = "timothee.giraud@cnrs.fr", role = c("cre","aut"), 
diff --git a/NEWS.md b/NEWS.md
index e73ea3f..3ed744a 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,10 @@
+# cartography 3.1.5
+
+## Minor change
+* fix urls in documentation
+
+
+
 # cartography 3.1.4
 
 ## Minor change
diff --git a/R/data.R b/R/data.R
index 68b318f..9511fd2 100644
--- a/R/data.R
+++ b/R/data.R
@@ -4,7 +4,7 @@
 #' @format SpatialPolygonsDataFrame.
 #' @details This SpatialPolygonsDataFrame can be used with the nuts3.df data frame 
 #' @field id Unique nuts id (character)
-#' @source UMS RIATE - \url{http://riate.cnrs.fr/}
+#' @source UMS RIATE - \url{https://riate.cnrs.fr/}
 #' @docType data
 #' @keywords internal
 NULL
@@ -15,7 +15,7 @@ NULL
 #' @format SpatialPolygonsDataFrame.
 #' @details This SpatialPolygonsDataFrame can be used with the nuts2.df data frame 
 #' @field id Unique nuts id (character)
-#' @source UMS RIATE - \url{http://riate.cnrs.fr/}
+#' @source UMS RIATE - \url{https://riate.cnrs.fr/}
 #' @docType data
 #' @keywords internal
 NULL
@@ -26,7 +26,7 @@ NULL
 #' @format SpatialPolygonsDataFrame.
 #' @details This SpatialPolygonsDataFrame can be used with the nuts1.df data frame 
 #' @field id Unique nuts id (character)
-#' @source UMS RIATE - \url{http://riate.cnrs.fr/}
+#' @source UMS RIATE - \url{https://riate.cnrs.fr/}
 #' @docType data
 #' @keywords internal
 NULL
@@ -37,7 +37,7 @@ NULL
 #' @format SpatialPolygonsDataFrame.
 #' @details This SpatialPolygonsDataFrame can be used with the nuts0.df data frame 
 #' @field id Unique nuts id (character)
-#' @source UMS RIATE - \url{http://riate.cnrs.fr/}
+#' @source UMS RIATE - \url{https://riate.cnrs.fr/}
 #' @docType data
 #' @keywords internal
 NULL
@@ -137,7 +137,7 @@ NULL
 #' @name coasts.spdf
 #' @description Coastline of Europe.
 #' @format SpatialLinesDataFrame.
-#' @source UMS RIATE - \url{http://riate.cnrs.fr/}
+#' @source UMS RIATE - \url{https://riate.cnrs.fr/}
 #' @docType data
 #' @keywords internal
 NULL
@@ -146,7 +146,7 @@ NULL
 #' @name frame.spdf
 #' @description Frame around European countries.
 #' @format SpatialPolygonsDataFrame.
-#' @source UMS RIATE - \url{http://riate.cnrs.fr/}
+#' @source UMS RIATE - \url{https://riate.cnrs.fr/}
 #' @docType data
 #' @keywords internal
 NULL
@@ -155,7 +155,7 @@ NULL
 #' @name graticule.spdf
 #' @description Graticule around Europe.
 #' @format SpatialLines.
-#' @source UMS RIATE - \url{http://riate.cnrs.fr/}
+#' @source UMS RIATE - \url{https://riate.cnrs.fr/}
 #' @docType data
 #' @keywords internal
 NULL
@@ -165,7 +165,7 @@ NULL
 #' @name countries.spdf
 #' @description Countries in the European area.
 #' @format SpatialPolygonsDataFrame.
-#' @source UMS RIATE - \url{http://riate.cnrs.fr/}
+#' @source UMS RIATE - \url{https://riate.cnrs.fr/}
 #' @docType data
 #' @keywords internal
 NULL
@@ -174,7 +174,7 @@ NULL
 #' @name world.spdf
 #' @description World background.
 #' @format SpatialPolygonsDataFrame.
-#' @source UMS RIATE - \url{http://riate.cnrs.fr/}
+#' @source UMS RIATE - \url{https://riate.cnrs.fr/}
 #' @docType data
 #' @keywords internal
 NULL
diff --git a/codemeta.json b/codemeta.json
index 4a715c6..83b19db 100644
--- a/codemeta.json
+++ b/codemeta.json
@@ -7,7 +7,7 @@
   "codeRepository": "https://github.com/riatelab/cartography/",
   "issueTracker": "https://github.com/riatelab/cartography/issues/",
   "license": "https://spdx.org/licenses/GPL-3.0",
-  "version": "3.1.4",
+  "version": "3.1.5",
   "programmingLanguage": {
     "@type": "ComputerLanguage",
     "name": "R",
@@ -251,7 +251,7 @@
     },
     "SystemRequirements": null
   },
-  "fileSize": "5688.502KB",
+  "fileSize": "5688.588KB",
   "citation": [
     {
       "@type": "ScholarlyArticle",
diff --git a/man/coasts.spdf.Rd b/man/coasts.spdf.Rd
index 5370158..fd28172 100644
--- a/man/coasts.spdf.Rd
+++ b/man/coasts.spdf.Rd
@@ -8,7 +8,7 @@
 SpatialLinesDataFrame.
 }
 \source{
-UMS RIATE - \url{http://riate.cnrs.fr/}
+UMS RIATE - \url{https://riate.cnrs.fr/}
 }
 \description{
 Coastline of Europe.
diff --git a/man/countries.spdf.Rd b/man/countries.spdf.Rd
index 92ab41e..4612514 100644
--- a/man/countries.spdf.Rd
+++ b/man/countries.spdf.Rd
@@ -8,7 +8,7 @@
 SpatialPolygonsDataFrame.
 }
 \source{
-UMS RIATE - \url{http://riate.cnrs.fr/}
+UMS RIATE - \url{https://riate.cnrs.fr/}
 }
 \description{
 Countries in the European area.
diff --git a/man/frame.spdf.Rd b/man/frame.spdf.Rd
index 1a3c284..bd223a9 100644
--- a/man/frame.spdf.Rd
+++ b/man/frame.spdf.Rd
@@ -8,7 +8,7 @@
 SpatialPolygonsDataFrame.
 }
 \source{
-UMS RIATE - \url{http://riate.cnrs.fr/}
+UMS RIATE - \url{https://riate.cnrs.fr/}
 }
 \description{
 Frame around European countries.
diff --git a/man/graticule.spdf.Rd b/man/graticule.spdf.Rd
index 3886e25..8f3da8a 100644
--- a/man/graticule.spdf.Rd
+++ b/man/graticule.spdf.Rd
@@ -8,7 +8,7 @@
 SpatialLines.
 }
 \source{
-UMS RIATE - \url{http://riate.cnrs.fr/}
+UMS RIATE - \url{https://riate.cnrs.fr/}
 }
 \description{
 Graticule around Europe.
diff --git a/man/nuts0.spdf.Rd b/man/nuts0.spdf.Rd
index 71f80d4..283f6ec 100644
--- a/man/nuts0.spdf.Rd
+++ b/man/nuts0.spdf.Rd
@@ -8,7 +8,7 @@
 SpatialPolygonsDataFrame.
 }
 \source{
-UMS RIATE - \url{http://riate.cnrs.fr/}
+UMS RIATE - \url{https://riate.cnrs.fr/}
 }
 \description{
 Delineations of EU administrative units (level 0, 2006 version).
diff --git a/man/nuts1.spdf.Rd b/man/nuts1.spdf.Rd
index 47cc0bb..9b20ef2 100644
--- a/man/nuts1.spdf.Rd
+++ b/man/nuts1.spdf.Rd
@@ -8,7 +8,7 @@
 SpatialPolygonsDataFrame.
 }
 \source{
-UMS RIATE - \url{http://riate.cnrs.fr/}
+UMS RIATE - \url{https://riate.cnrs.fr/}
 }
 \description{
 Delineations of EU administrative units (level 1, 2006 version).
diff --git a/man/nuts2.spdf.Rd b/man/nuts2.spdf.Rd
index 0aa5b7f..ca79cad 100644
--- a/man/nuts2.spdf.Rd
+++ b/man/nuts2.spdf.Rd
@@ -8,7 +8,7 @@
 SpatialPolygonsDataFrame.
 }
 \source{
-UMS RIATE - \url{http://riate.cnrs.fr/}
+UMS RIATE - \url{https://riate.cnrs.fr/}
 }
 \description{
 Delineations of EU administrative units (level 2, 2006 version).
diff --git a/man/nuts3.spdf.Rd b/man/nuts3.spdf.Rd
index d1d561e..c36daa8 100644
--- a/man/nuts3.spdf.Rd
+++ b/man/nuts3.spdf.Rd
@@ -8,7 +8,7 @@
 SpatialPolygonsDataFrame.
 }
 \source{
-UMS RIATE - \url{http://riate.cnrs.fr/}
+UMS RIATE - \url{https://riate.cnrs.fr/}
 }
 \description{
 Delineations of EU administrative units (level 3, 2006 version).
diff --git a/man/world.spdf.Rd b/man/world.spdf.Rd
index 4acb3f5..4d5cc45 100644
--- a/man/world.spdf.Rd
+++ b/man/world.spdf.Rd
@@ -8,7 +8,7 @@
 SpatialPolygonsDataFrame.
 }
 \source{
-UMS RIATE - \url{http://riate.cnrs.fr/}
+UMS RIATE - \url{https://riate.cnrs.fr/}
 }
 \description{
 World background.