diff --git a/DESCRIPTION b/DESCRIPTION
index 87f5a92..ca5d212 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: spatstat.linnet
-Version: 3.1-3.004
-Date: 2024-01-25
+Version: 3.1-4
+Date: 2024-02-01
 Title: Linear Networks Functionality of the 'spatstat' Family
 Authors@R: c(person("Adrian", "Baddeley", 
                     role = c("aut", "cre", "cph"),
@@ -25,7 +25,7 @@ Authors@R: c(person("Adrian", "Baddeley",
 	     person("Ottmar", "Cronie",
 	            role = "ctb"))
 Maintainer: Adrian Baddeley <Adrian.Baddeley@curtin.edu.au>
-Depends: R (>= 3.5.0), spatstat.data (>= 3.0), spatstat.geom (>= 3.2-7), spatstat.random (>= 3.2-1), spatstat.explore (>= 3.2-5), spatstat.model (>= 3.2-8.005), stats, graphics, grDevices, methods, utils
+Depends: R (>= 3.5.0), spatstat.data (>= 3.0), spatstat.geom (>= 3.2-7), spatstat.random (>= 3.2-1), spatstat.explore (>= 3.2-5), spatstat.model (>= 3.2-9), stats, graphics, grDevices, methods, utils
 Imports: spatstat.utils (>= 3.0-3), Matrix, spatstat.sparse (>= 3.0)
 Suggests: goftest, locfit, spatstat (>= 3.0)
 Description: Defines types of spatial data on a linear network
diff --git a/NEWS b/NEWS
index 2aa93b6..c41705c 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,5 @@
 
-        CHANGES IN spatstat.linnet VERSION 3.1-3.004
+        CHANGES IN spatstat.linnet VERSION 3.1-4
 
 OVERVIEW
 
diff --git a/R/densitylppVoronoi.R b/R/densitylppVoronoi.R
index f22679b..5b5a74e 100644
--- a/R/densitylppVoronoi.R
+++ b/R/densitylppVoronoi.R
@@ -3,7 +3,7 @@
 #'
 #'    densityVoronoi.lpp
 #'
-#'    $Revision: 1.14 $  $Date: 2021/07/01 11:31:50 $
+#'    $Revision: 1.15 $  $Date: 2024/01/29 08:04:32 $
 #' 
 
 densityVoronoi.lpp <- function(X, f = 1, ..., nrep = 1, verbose = TRUE){
@@ -152,7 +152,7 @@ bw.voronoi <- function(X, ..., probrange = c(0.2,0.8), nprob = 10,
                      creator="bw.voronoi",
                      criterion="Likelihood Cross-Validation",
                      warnextreme=warn, hargnames=c("probrange", "prob"),
-                     unitname=NULL)
+                     unitname=NULL, hword="probability")
   return(result)
 }
 
diff --git a/inst/doc/packagesizes.txt b/inst/doc/packagesizes.txt
index 42022d9..b463a32 100755
--- a/inst/doc/packagesizes.txt
+++ b/inst/doc/packagesizes.txt
@@ -30,4 +30,4 @@ date version nhelpfiles nobjects ndatasets Rlines srclines
 "2023-05-13" "3.1-1" 148 307 0 12268 3270
 "2023-10-22" "3.1-2" 148 307 0 12268 3270
 "2023-10-28" "3.1-3" 148 307 0 12268 3270
-"2024-01-25" "3.1-3.004" 148 312 0 12340 3270
+"2024-02-01" "3.1-4" 148 312 0 12340 3270