diff --git a/DESCRIPTION b/DESCRIPTION
index 4061965..dfde9dd 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -18,16 +18,16 @@ Depends:
 Imports:
     assertr,
     assertthat,
-    collections,
     data.table,
-    doFuture,
     dplyr,
-    future,
+    future.apply,
     glue,
     graphics,
+    purrr,
     relsurv,
     rlang,
     stats,
+    stringr,
     survival,
     tibble,
     tidyr,
@@ -37,5 +37,7 @@ Encoding: UTF-8
 Roxygen: list(markdown = TRUE)
 RoxygenNote: 7.2.3
 Suggests: 
+    collections,
+    future,
     testthat (>= 3.0.0)
 Config/testthat/edition: 3
diff --git a/NAMESPACE b/NAMESPACE
index 8eab531..0ffb2b6 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -16,5 +16,4 @@ importFrom(data.table,.N)
 importFrom(data.table,.NGRP)
 importFrom(data.table,.SD)
 importFrom(data.table,data.table)
-importFrom(doFuture,"%dofuture%")
 importFrom(dplyr,"%>%")