diff --git a/DESCRIPTION b/DESCRIPTION
index 96df39b1..96e9c057 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,10 @@
 Package: StormR
 Title: R package to compute the behaviour of wind generated by tropical
     storms and cyclones
+Maintainer: Thomas Arsouze <thomas.arsouze@cirad.fr>
 Version: 0.1.0
+URL: https://umr-amap.github.io/StormR/
+BugReports: https://github.com/umr-amap/StormR/issues/new/choose
 Authors@R: c(
     person("Baptiste", "Delaporte", , "baptiste.delaporte@protonmail.com", role = c("aut", "cre")),
     person("Thomas", "Ibanez", , "thomas.ibanez@ird.fr", role = "aut",
@@ -27,7 +30,6 @@ Imports:
     methods,
     ncdf4,
     rworldmap,
-    rworldxtra,
     sf,
     sp,
     stringr,
@@ -35,6 +37,7 @@ Imports:
     utils,
     zoo
 Suggests: 
+    rworldxtra,
     knitr,
     rmarkdown,
     testthat (>= 3.0.0)
diff --git a/NAMESPACE b/NAMESPACE
index 5a0b001d..b4d00ffe 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -24,7 +24,6 @@ export(writeRast)
 exportClasses(storm)
 exportClasses(stormsDataset)
 exportClasses(stormsList)
-import(rworldxtra)
-import(sp)
 importFrom(methods,as)
 importFrom(methods,new)
+importFrom(methods,show)
diff --git a/R/getStorms.R b/R/getStorms.R
index 2e69b25c..07a97ab5 100644
--- a/R/getStorms.R
+++ b/R/getStorms.R
@@ -74,7 +74,7 @@ setOldClass("sf")
 #'   is EPSG:4326
 #' @slot spatialLoiBuffer sf object. Buffer extension of `spatialLoi`
 #' @importFrom methods new
-#' @import sp
+#' @importFrom methods show
 #' @export
 stormsList <- methods::setClass("stormsList",
                                 slots = c(data = "list",
diff --git a/R/plotStorms.R b/R/plotStorms.R
index 439a1a99..354181cf 100644
--- a/R/plotStorms.R
+++ b/R/plotStorms.R
@@ -116,7 +116,7 @@ plotLabels <- function(st, by, pos) {
 #' @param ylim numeric vector
 #' @return NULL
 checkInputsPlotStorms <- function(sts, names, category, labels, by,
-                          pos, legends, loi, xlim, ylim) {
+                                  pos, legends, loi, xlim, ylim) {
   # Checking sts input
   stopifnot("no data to plot" = !missing(sts))
 
@@ -207,7 +207,6 @@ checkInputsPlotStorms <- function(sts, names, category, labels, by,
 #' `"bottomleft"`, `"bottomright"`, or `"none"` (legend not plotted).
 #' @param loi logical. Whether (TRUE, default setting) or not (FALSE) to plot the
 #' extent of the buffered location of interest on the map.
-#' @import rworldxtra
 #'
 #' @examples
 #' \dontrun{
diff --git a/tests/testthat/test-getStorms.R b/tests/testthat/test-getStorms.R
index 3d7030d6..c2ca00bb 100644
--- a/tests/testthat/test-getStorms.R
+++ b/tests/testthat/test-getStorms.R
@@ -313,7 +313,7 @@ test_that("StormsList class getters", {
 test_that("Storm and stormsList class getters", {
   suppressWarnings(sds <- defDatabase(verbose = 0))
   sts_nc <- defStormsList(sds = sds, loi = "New Caledonia", verbose = 0)
-  out <- capture_output_lines(show(sts_nc@data$PAM))
+  out <- capture_output_lines(sp::show(sts_nc@data$PAM))
 
   # Check that the Storm output is correct
   expect_match(out[1], "Name: PAM")
@@ -323,7 +323,7 @@ test_that("Storm and stormsList class getters", {
   expect_match(out[7], "1  2015-03-08 12:00:00 168.9000  -7.500000  13   -1  93 100400 100500")
   expect_match(tail(out, n = 1), "57 2015-03-15 12:00:00 178.5000 -33.799999  28   -4  37  98200  99300")
 
-  out <- capture_output_lines(show(sts_nc))
+  out <- capture_output_lines(sp::show(sts_nc))
   # Check that the Storm output is correct
   expect_match(out[3], "Number of storms: 7 ")
   expect_match(out[7], "Name: PAM")
@@ -375,12 +375,12 @@ test_that("Test convert loi function", {
   sr2 <- sp::Polygon(rbind(c(180, 0), c(290, 0), c(290, 60), c(180, 60), c(180, 0)), hole = TRUE)
   srs1 <- sp::Polygons(list(sr1), "s1")
   srs2 <- sp::Polygons(list(sr2), "s2")
-  spP <- sp::SpatialPolygons(list(srs1, srs2), 1:2, proj4string = CRS(as.character("wgs84")))
+  spP <- sp::SpatialPolygons(list(srs1, srs2), 1:2, proj4string = sp::CRS(as.character("wgs84")))
   centroids <- sp::coordinates(spP)
   x <- centroids[, 1]
   y <- centroids[, 2]
   z <- 1.4 + 0.1 * x + 0.2 * y + 0.002 * x * x
-  test <- SpatialPolygonsDataFrame(spP,
+  test <- sp::SpatialPolygonsDataFrame(spP,
     data = data.frame(x = x, y = y, z = z, row.names = row.names(spP))
   )
   expect_identical(sf::st_crs(convertLoi(test))$input, "EPSG:4326")