diff --git a/inst/examples/make_blocks_help.R b/inst/examples/make_blocks_help.R
index 00c5d62..d251a00 100644
--- a/inst/examples/make_blocks_help.R
+++ b/inst/examples/make_blocks_help.R
@@ -10,7 +10,7 @@ block.pt <- make_blocks(nfolds = 5, df = obs.pt[,c("decimalLatitude","decimalLon
 
 # Plot one colour per fold
 countries <- terra::vect(rnaturalearth::ne_countries(type = "countries", returnclass = "sf"))
-countries.focus <- crop(countries, ext(60,100,0,40))
+countries.focus <- terra::crop(countries, terra::ext(60,100,0,40))
 terra::plot(countries.focus, col = "#bcbddc")
-graphic::points(obs.pt[,c("decimalLongitude","decimalLatitude")], pch = 20, col = block.pt, cex = 1)
+graphics::points(obs.pt[,c("decimalLongitude","decimalLatitude")], pch = 20, col = block.pt, cex = 1)
 }
\ No newline at end of file
diff --git a/man/make_blocks.Rd b/man/make_blocks.Rd
index 73ffa33..5fef7d7 100644
--- a/man/make_blocks.Rd
+++ b/man/make_blocks.Rd
@@ -54,9 +54,9 @@ block.pt <- make_blocks(nfolds = 5, df = obs.pt[,c("decimalLatitude","decimalLon
 
 # Plot one colour per fold
 countries <- terra::vect(rnaturalearth::ne_countries(type = "countries", returnclass = "sf"))
-countries.focus <- crop(countries, ext(60,100,0,40))
+countries.focus <- terra::crop(countries, terra::ext(60,100,0,40))
 terra::plot(countries.focus, col = "#bcbddc")
-graphic::points(obs.pt[,c("decimalLongitude","decimalLatitude")], pch = 20, col = block.pt, cex = 1)
+graphics::points(obs.pt[,c("decimalLongitude","decimalLatitude")], pch = 20, col = block.pt, cex = 1)
 }
 }
 \references{