diff --git a/DESCRIPTION b/DESCRIPTION
index 08ecc70..dcdc7a4 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,26 +1,26 @@
 Package: toprdata
 Title: Gene and Exon Data from Ensembl
-Version: 1.0.0
+Version: 1.0.1
 Authors@R: c(
     person("Genuity", "Science", role = "cph", email = "thorhildur@genuitysci.com"),
     person("Thorhildur", "Juliusdottir", role = c("aut", "cre"),email = "thorhildur@genuitysci.com"),
     person("Andri", "Stefansson", role = "aut", email = "andri@genuitysci.com")
     )
-Description: Gene and exon information from Ensembl (build GRCh38.p13) to use with the topr package.
+Description: Gene and exon information from Ensembl genome builds GRCh38.p13 (104) and GRCh37 (v40) to use with the 'topr' package.
 License: LGPL (>= 3)
 Encoding: UTF-8
 LazyData: true
 LazyDataCompression: xz
-RoxygenNote: 7.1.2
+RoxygenNote: 7.2.0
 Suggests: testthat (>= 3.0.0), knitr, rmarkdown, markdown
 Config/testthat/edition: 3
 Imports:
 Depends: R (>= 3.5.0)
 NeedsCompilation: no
-Packaged: 2022-01-07 18:28:24 UTC; thorhildur
+Packaged: 2022-08-19 13:12:35 UTC; thorhildur
 Author: Genuity Science [cph],
   Thorhildur Juliusdottir [aut, cre],
   Andri Stefansson [aut]
 Maintainer: Thorhildur Juliusdottir <thorhildur@genuitysci.com>
 Repository: CRAN
-Date/Publication: 2022-01-10 10:40:02 UTC
+Date/Publication: 2022-08-19 13:40:02 UTC
diff --git a/MD5 b/MD5
index c4b9215..a3af183 100644
--- a/MD5
+++ b/MD5
@@ -1,10 +1,14 @@
-af3e1c9ea4c23587586d1239265feaa3 *DESCRIPTION
+72915b5e421a5bf82922616719449d24 *DESCRIPTION
 dc21c19f0d6968ee25d441b2cf46017d *NAMESPACE
-a2b03d6abe02b0f6d4e3df468d09f11c *NEWS.md
-51bf89d39eec3fcd28ba28e8e7fc178d *R/data.R
-439627db59c0f7fe26eb175812b3c9e8 *R/toprdata.R
+27de19970ae05b22b5b4f6ba3208de29 *NEWS.md
+c55ac7e916a0ba72ebccd8ca87032146 *R/data.R
+24dcefaeee7cb781eded041183cf5208 *R/toprdata.R
 5b48700a4727930888ec284764a056a4 *data/ENSEXONS.rda
+ed7949f10b6619857a733efe40f9b024 *data/ENSEXONS_37.rda
 f82238a6b7c2f8436b97b216f1b749ed *data/ENSGENES.rda
+5252a48dff176084a97634c7621ac2ec *data/ENSGENES_37.rda
 2120cd03c04db48a7e2c33ab2b389362 *man/ENSEXONS.Rd
+093d0ef8c33dd37f33b25e57fc41750a *man/ENSEXONS_37.Rd
 6dd44b6aa32491b585052b301cb6df53 *man/ENSGENES.Rd
-7da6b0c0c3f2291516b32590d14b9502 *man/toprdata.Rd
+5a68aab852111f8ae1b108b12d1c19a4 *man/ENSGENES_37.Rd
+f733725a4ab305f6b7328c21f95e08bf *man/toprdata.Rd
diff --git a/NEWS.md b/NEWS.md
index 87b8490..7a37955 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,6 @@
+# 1.0.1
+* Genome build GRCh37 (v40) from gencode included
+
 # 1.0.0
 
 * First version submitted to CRAN
diff --git a/R/data.R b/R/data.R
index 9ede063..feeab61 100644
--- a/R/data.R
+++ b/R/data.R
@@ -31,3 +31,35 @@
 #'   \item{exon_chromend}{genetic position of exon end}
 #' }
 "ENSEXONS"
+
+#' Ensembl genes build HG37 (GRCh37) v40 from gencode
+#'
+#' genes on chrY and chrM were excluded
+#'
+#' @format A data frame  with 62,743 rows and 5 variables:
+#' \describe{
+#'   \item{chrom}{Chromosome on build version 38 (GRCh38/hg38)}
+#'   \item{gene_start}{genetic position of gene start on build version 38}
+#'   \item{gene_end}{genetic position of gene end on build version 38 }
+#'   \item{gene_symbol}{The name of the gene}
+#'   \item{biotype}{the biotype of the gene}
+#'   }
+"ENSGENES_37"
+
+
+#' Ensembl exons build HG37 (GRCh37) v40 from gencode
+#'
+#' exons on chrY and chrM were excluded from the exon dataset
+#'
+#' @format A data frame  with 62,739 rows and 7 variables:
+#' \describe{
+#'   \item{chrom}{Chromosome on build version 38 (GRCh38/hg38)}
+#'   \item{gene_start}{genetic position of gene start on build version 38}
+#'   \item{gene_end}{genetic position of gene end on build version 38 }
+#'   \item{gene_symbol}{The name of the gene}
+#'   \item{exon_chromstart}{genetic positions of exon start}
+#'   \item{exon_chromend}{genetic position of exon end}
+#' }
+"ENSEXONS_37"
+
+
diff --git a/R/toprdata.R b/R/toprdata.R
index 5933b07..6b1eb69 100644
--- a/R/toprdata.R
+++ b/R/toprdata.R
@@ -1,12 +1,14 @@
 #'  toprdata
 #'
-#' @description Gene and exon datasets to use with the topr package
+#' @description Gene and exon datasets to use with the 'topr' package
 #' @docType package
 #' @name toprdata
 #' @section datasets:
 #' The two datasets are:
-#' * \code{\link{ENSGENES}} Gene information
-#' * \code{\link{ENSEXONS}} Exon informatino
+#' * \code{\link{ENSGENES}} Gene information from genome build GRCh38
+#' * \code{\link{ENSEXONS}} Exon information from genome build GRCh38
+#' * \code{\link{ENSGENES_37}} Gene information from genome build GRCh37
+#' * \code{\link{ENSEXONS_37}} Exon information from genome build GRCh37
 #' @examples
 #' library(toprdata)
 #' head(ENSGENES)
diff --git a/data/ENSEXONS_37.rda b/data/ENSEXONS_37.rda
new file mode 100644
index 0000000..3792e6b
Binary files /dev/null and b/data/ENSEXONS_37.rda differ
diff --git a/data/ENSGENES_37.rda b/data/ENSGENES_37.rda
new file mode 100644
index 0000000..d8e5f4a
Binary files /dev/null and b/data/ENSGENES_37.rda differ
diff --git a/man/ENSEXONS_37.Rd b/man/ENSEXONS_37.Rd
new file mode 100644
index 0000000..6590efb
--- /dev/null
+++ b/man/ENSEXONS_37.Rd
@@ -0,0 +1,24 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/data.R
+\docType{data}
+\name{ENSEXONS_37}
+\alias{ENSEXONS_37}
+\title{Ensembl exons build HG37 (GRCh37) v40 from gencode}
+\format{
+A data frame  with 62,739 rows and 7 variables:
+\describe{
+\item{chrom}{Chromosome on build version 38 (GRCh38/hg38)}
+\item{gene_start}{genetic position of gene start on build version 38}
+\item{gene_end}{genetic position of gene end on build version 38 }
+\item{gene_symbol}{The name of the gene}
+\item{exon_chromstart}{genetic positions of exon start}
+\item{exon_chromend}{genetic position of exon end}
+}
+}
+\usage{
+ENSEXONS_37
+}
+\description{
+exons on chrY and chrM were excluded from the exon dataset
+}
+\keyword{datasets}
diff --git a/man/ENSGENES_37.Rd b/man/ENSGENES_37.Rd
new file mode 100644
index 0000000..57e7cd4
--- /dev/null
+++ b/man/ENSGENES_37.Rd
@@ -0,0 +1,23 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/data.R
+\docType{data}
+\name{ENSGENES_37}
+\alias{ENSGENES_37}
+\title{Ensembl genes build HG37 (GRCh37) v40 from gencode}
+\format{
+A data frame  with 62,743 rows and 5 variables:
+\describe{
+\item{chrom}{Chromosome on build version 38 (GRCh38/hg38)}
+\item{gene_start}{genetic position of gene start on build version 38}
+\item{gene_end}{genetic position of gene end on build version 38 }
+\item{gene_symbol}{The name of the gene}
+\item{biotype}{the biotype of the gene}
+}
+}
+\usage{
+ENSGENES_37
+}
+\description{
+genes on chrY and chrM were excluded
+}
+\keyword{datasets}
diff --git a/man/toprdata.Rd b/man/toprdata.Rd
index 91a707e..3c4a666 100644
--- a/man/toprdata.Rd
+++ b/man/toprdata.Rd
@@ -5,14 +5,16 @@
 \alias{toprdata}
 \title{toprdata}
 \description{
-Gene and exon datasets to use with the topr package
+Gene and exon datasets to use with the 'topr' package
 }
 \section{datasets}{
 
 The two datasets are:
 \itemize{
-\item \code{\link{ENSGENES}} Gene information
-\item \code{\link{ENSEXONS}} Exon informatino
+\item \code{\link{ENSGENES}} Gene information from genome build GRCh38
+\item \code{\link{ENSEXONS}} Exon information from genome build GRCh38
+\item \code{\link{ENSGENES_37}} Gene information from genome build GRCh37
+\item \code{\link{ENSEXONS_37}} Exon information from genome build GRCh37
 }
 }