diff --git a/DESCRIPTION b/DESCRIPTION
index 6ca32ce..4061965 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -14,10 +14,7 @@ License: GPL (>= 2)
 URL: https://github.com/qmarcou/netidmtpreg
 BugReports: https://github.com/qmarcou/netidmtpreg/issues
 Depends: 
-    doParallel,
-    foreach,
-    R (>= 3.4.0),
-    survival
+    R (>= 3.4.0)
 Imports:
     assertr,
     assertthat,
@@ -31,6 +28,7 @@ Imports:
     relsurv,
     rlang,
     stats,
+    survival,
     tibble,
     tidyr,
     tryCatchLog,
diff --git a/NAMESPACE b/NAMESPACE
index 2f2c2f8..8eab531 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -1,5 +1,4 @@
 # Generated by roxygen2: do not edit by hand
-import(survival, foreach , doParallel)
 importFrom("graphics", "lines", "par", "plot")
 importFrom("stats", "binomial", "coefficients", "complete.cases", "contrasts", "is.empty.model", "model.matrix", "na.omit", "pnorm","quantile", "time")
 importFrom("utils", "tail", "methods")