diff --git a/DESCRIPTION b/DESCRIPTION
index dd4862d..0db50ee 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: ProTrackR
 Type: Package
 Title: Manipulate and Play 'ProTracker' Modules
-Version: 0.3.9
+Version: 0.4.0
 Date: 2024-02-14
 Authors@R: c(person("Pepijn", "de Vries", role = c("aut", "cre", "dtc"),
     email = "pepijn.devries@outlook.com",
diff --git a/NEWS.md b/NEWS.md
index 2897646..9c283a9 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,4 +1,4 @@
-ProTrackR v0.3.9 (Release date: 2023-02-14)
+ProTrackR v0.4.0 (Release date: 2023-02-14)
 =============
 
  * Added `pkgdown` website and README
diff --git a/R/02PTCell.r b/R/02PTCell.r
index 19ceb1b..ea2ce03 100644
--- a/R/02PTCell.r
+++ b/R/02PTCell.r
@@ -306,7 +306,7 @@ setGeneric("effect<-", function(x, value) standardGeneric("effect<-"))
 #' When replacing this code, all three digit hexadecimal `character`
 #' strings are accepted, although not all codes will represent a valid
 #' effect or trigger. See
-#' <http://coppershade.org/articles/More!/Topics/Protracker_Effect_Commands/>
+#' <https://wiki.openmpt.org/Manual:_Effect_Reference#MOD_Effect_Commands>
 #' for a valid list of effect codes.
 #' @rdname effect
 #' @name effect
diff --git a/R/06PTModule.r b/R/06PTModule.r
index b3eb1b9..e756bd9 100644
--- a/R/06PTModule.r
+++ b/R/06PTModule.r
@@ -86,7 +86,6 @@ validity.PTModule <- function(object)
 #'
 #' <https://wiki.multimedia.cx/index.php?title=Protracker_Module>
 #'
-#' <http://coppershade.org/articles/More!/Topics/Protracker_File_Format/>
 #' @examples
 #' ## create an empty PTModule class object:
 #' mod.empty <- new("PTModule")
@@ -308,8 +307,6 @@ setGeneric("read.module", function(file, ignore.validity = F) standardGeneric("r
 #' close(con)
 #' }
 #' @references <https://wiki.multimedia.cx/index.php?title=Protracker_Module>
-#'
-#' <http://coppershade.org/articles/More!/Topics/Protracker_File_Format/>
 #' @family io.operations
 #' @family module.operations
 #' @author Pepijn de Vries
@@ -464,8 +461,6 @@ setGeneric("write.module", def = function(mod, file){
 #' close(con)
 #' }
 #' @references <https://wiki.multimedia.cx/index.php?title=Protracker_Module>
-#'
-#' <http://coppershade.org/articles/More!/Topics/Protracker_File_Format/>
 #' @family io.operations
 #' @family module.operations
 #' @author Pepijn de Vries
diff --git a/README.Rmd b/README.Rmd
index 45d873a..bc52690 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -29,7 +29,7 @@ This R package is designed to read, process and play ProTracker module audio fil
 ```{r eval=FALSE}
 install.packages("ProTrackR")
 ```
-> Get development version on github
+> Get development version from R-Universe
 ``` r
 install.packages("ProTrackR", repos = c('https://pepijn-devries.r-universe.dev', 'https://cloud.r-project.org'))
 ```
diff --git a/README.md b/README.md
index dd312f8..2305508 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ ProTracker module audio files.
 install.packages("ProTrackR")
 ```
 
-> Get development version on github
+> Get development version from R-Universe
 
 ``` r
 install.packages("ProTrackR", repos = c('https://pepijn-devries.r-universe.dev', 'https://cloud.r-project.org'))
diff --git a/man/PTModule-class.Rd b/man/PTModule-class.Rd
index 254a289..f470697 100644
--- a/man/PTModule-class.Rd
+++ b/man/PTModule-class.Rd
@@ -78,8 +78,6 @@ data("mod.intro")
 \url{https://en.wikipedia.org/wiki/MOD_(file_format)}
 
 \url{https://wiki.multimedia.cx/index.php?title=Protracker_Module}
-
-\url{http://coppershade.org/articles/More!/Topics/Protracker_File_Format/}
 }
 \seealso{
 Other module.operations: 
diff --git a/man/effect.Rd b/man/effect.Rd
index 6ed8774..f2bc5cc 100644
--- a/man/effect.Rd
+++ b/man/effect.Rd
@@ -43,7 +43,7 @@ also affect the module tempo or cause position jumps.
 When replacing this code, all three digit hexadecimal \code{character}
 strings are accepted, although not all codes will represent a valid
 effect or trigger. See
-\url{http://coppershade.org/articles/More!/Topics/Protracker_Effect_Commands/}
+\url{https://wiki.openmpt.org/Manual:_Effect_Reference#MOD_Effect_Commands}
 for a valid list of effect codes.
 }
 \examples{
diff --git a/man/read.module.Rd b/man/read.module.Rd
index ded3e15..c6ddcd0 100644
--- a/man/read.module.Rd
+++ b/man/read.module.Rd
@@ -71,8 +71,6 @@ close(con)
 }
 \references{
 \url{https://wiki.multimedia.cx/index.php?title=Protracker_Module}
-
-\url{http://coppershade.org/articles/More!/Topics/Protracker_File_Format/}
 }
 \seealso{
 Other io.operations: 
diff --git a/man/write.module.Rd b/man/write.module.Rd
index b0a4c7f..c43f4e9 100644
--- a/man/write.module.Rd
+++ b/man/write.module.Rd
@@ -47,8 +47,6 @@ close(con)
 }
 \references{
 \url{https://wiki.multimedia.cx/index.php?title=Protracker_Module}
-
-\url{http://coppershade.org/articles/More!/Topics/Protracker_File_Format/}
 }
 \seealso{
 Other io.operations: