diff --git a/DESCRIPTION b/DESCRIPTION
index 79f3f5c..586b4af 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -33,6 +33,7 @@ Suggests:
     Kendall,
     knitr,
     rmarkdown,
+    sf,
     testthat (>= 3.0.0),
     tidyterra,
     withr,
@@ -44,7 +45,6 @@ Imports:
     jsonlite,
     rappdirs,
     rlang,
-    sf,
     stringr,
     terra,
     tibble
diff --git a/NAMESPACE b/NAMESPACE
index 7b9540f..46cc800 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -24,3 +24,5 @@ export(cd_stac_catalog)
 export(cd_summary)
 export(cd_trend)
 export(cd_variables)
+importFrom(rlang,.data)
+importFrom(rlang,.env)
diff --git a/R/cd-package.R b/R/cd-package.R
index 0cc9deb..baa5ada 100644
--- a/R/cd-package.R
+++ b/R/cd-package.R
@@ -1,2 +1,3 @@
 #' @keywords internal
+#' @importFrom rlang .data .env
 "_PACKAGE"
diff --git a/tests/testthat/test-cd_crop.R b/tests/testthat/test-cd_crop.R
index d81c1d0..3a0d8a1 100644
--- a/tests/testthat/test-cd_crop.R
+++ b/tests/testthat/test-cd_crop.R
@@ -1,4 +1,5 @@
 test_that("cd_crop returns cropped SpatRaster from sf AOI", {
+  skip_if_not_installed("sf")
   href <- system.file("extdata", "example_climate.tif", package = "cd")
   aoi <- sf::st_read(
     system.file("extdata", "example_aoi.gpkg", package = "cd"),
@@ -23,6 +24,7 @@ test_that("cd_crop accepts SpatVector AOI", {
 })
 
 test_that("cd_crop preserves band names", {
+  skip_if_not_installed("sf")
   href <- system.file("extdata", "example_climate.tif", package = "cd")
   aoi <- sf::st_read(
     system.file("extdata", "example_aoi.gpkg", package = "cd"),
@@ -34,6 +36,7 @@ test_that("cd_crop preserves band names", {
 })
 
 test_that("cd_crop with cache = TRUE passes a local href straight through", {
+  skip_if_not_installed("sf")
   href <- system.file("extdata", "example_climate.tif", package = "cd")
   aoi <- sf::st_read(
     system.file("extdata", "example_aoi.gpkg", package = "cd"),
diff --git a/tests/testthat/test-cd_extract.R b/tests/testthat/test-cd_extract.R
index 3eb56d8..85dea0b 100644
--- a/tests/testthat/test-cd_extract.R
+++ b/tests/testthat/test-cd_extract.R
@@ -1,4 +1,5 @@
 test_that("cd_extract returns expected structure", {
+  skip_if_not_installed("sf")
   catalog <- cd_catalog(
     system.file("extdata", "example_catalog.json", package = "cd")
   )
@@ -17,6 +18,7 @@ test_that("cd_extract returns expected structure", {
 })
 
 test_that("cd_extract values are numeric and non-NA", {
+  skip_if_not_installed("sf")
   catalog <- cd_catalog(
     system.file("extdata", "example_catalog.json", package = "cd")
   )
@@ -31,6 +33,7 @@ test_that("cd_extract values are numeric and non-NA", {
 })
 
 test_that("cd_extract filters by years", {
+  skip_if_not_installed("sf")
   catalog <- cd_catalog(
     system.file("extdata", "example_catalog.json", package = "cd")
   )
@@ -45,6 +48,7 @@ test_that("cd_extract filters by years", {
 })
 
 test_that("cd_extract cache = TRUE matches cache = FALSE for local COGs", {
+  skip_if_not_installed("sf")
   catalog <- cd_catalog(
     system.file("extdata", "example_catalog.json", package = "cd")
   )
@@ -59,6 +63,7 @@ test_that("cd_extract cache = TRUE matches cache = FALSE for local COGs", {
 })
 
 test_that("cd_extract filters by variables", {
+  skip_if_not_installed("sf")
   catalog <- cd_catalog(
     system.file("extdata", "example_catalog.json", package = "cd")
   )