diff --git a/DESCRIPTION b/DESCRIPTION
index bc760fc..e830028 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,5 +1,5 @@
 Package: htnorm
-Version: 0.2.0
+Version: 1.0.0
 Title: Fast Simulation of Hyperplane-Truncated Multivariate Normal Distributions
 Author: Zolisa Bleki
 Maintainer: Zolisa Bleki <zolisa.bleki@gmail.com>
diff --git a/build-wheels.sh b/build-wheels.sh
index 74110e4..463e722 100755
--- a/build-wheels.sh
+++ b/build-wheels.sh
@@ -7,35 +7,38 @@ set -e -u -x
 cd $(dirname $0)
 
 bin_arr=(
-    /opt/python/cp36-cp36m/bin
-    /opt/python/cp37-cp37m/bin
+    #/opt/python/cp37-cp37m/bin
     /opt/python/cp38-cp38/bin
-    /opt/python/cp39-cp39/bin
+    #/opt/python/cp39-cp39/bin
 )
 
 # add  python to image's path
-export PATH=/opt/python/cp38-cp38/bin/:$PATH
+export PATH=/opt/python/cp37-cp37m/bin/:$PATH
 # download install script
 curl -#sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py > get-poetry.py
 # install using local archive
-python get-poetry.py -y --file poetry-1.1.4-linux.tar.gz
+python get-poetry.py -y --file poetry-1.1.5-linux.tar.gz
 # install openblas
 yum install -y openblas-devel
 
 function build_poetry_wheels
 {
-    # build wheels for 3.6-3.9 with poetry 
+    # build wheels for 3.7-3.9 with poetry 
     for BIN in "${bin_arr[@]}"; do
         rm -Rf build/*
         # install build deps
-        "${BIN}/python" ${HOME}/.poetry/bin/poetry run pip install numpy
+        "${BIN}/python" ${HOME}/.poetry/bin/poetry run pip install numpy==1.18.1
         BUILD_WHEELS=1 "${BIN}/python" ${HOME}/.poetry/bin/poetry build -f wheel
-        auditwheel repair dist/*.whl --plat $1
-        whl="$(basename dist/*.whl)"
-        "${BIN}/python" -m pip install wheelhouse/"$whl"
-        # test if installed wheel imports correctly
-        "${BIN}/python" -c "from pyhtnorm import *"
-        rm dist/*.whl
+        mkdir -p ./tmp
+        for whl in dist/*.whl; do
+            auditwheel repair "$whl" --plat $1 -w "./tmp" 
+            whlname="$(basename "$(echo ./tmp/*.whl)")"
+            "${BIN}/python" -m pip install ./tmp/"$whlname"
+            # test if installed wheel imports correctly
+            "${BIN}/python" -c "from pyhtnorm import *"
+            mv ./tmp/*.whl wheelhouse/
+            rm "$whl"
+        done
     done
 }
 
diff --git a/pyproject.toml b/pyproject.toml
index 1992f50..617070d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "pyhtnorm"
-version = "1.0.0"
+version = "2.0.0"
 description = "Fast Simulation of Hyperplane-Truncated Multivatiate Normal Distributions" 
 authors = ["Zolisa Bleki"]
 license = "BSD-3-Clause"
@@ -20,17 +20,15 @@ include = [
     {path = "include", format = "sdist"},
     {path = "src/*.c", format = "sdist"},
     {path = "src/*.h", format = "sdist"},
-    {path = "src/*.txt", format = "sdist"},
-
-    {path = "pyhtnorm/*.pxd"}
+    {path = "third_party_licenses"},
 ]
 
 [tool.poetry.build]
 script = "build.py"
 
 [tool.poetry.dependencies]
-python = "^3.6.1"
-numpy = "^1.17.0"
+python = "^3.7.0"
+numpy = "^1.18.1"
 
 [tool.poetry.dev-dependencies]
 Cython = "^0.29.20"
@@ -38,5 +36,5 @@ pytest = "*"
 toml = "^0.10.2"
 
 [build-system]
-requires = ["poetry-core>=1.0.0a9", "wheel", "setuptools", "numpy>=1.17"]
+requires = ["poetry-core>=1.0.0a9", "wheel", "setuptools", "numpy==1.18.1"]
 build-backend = "poetry.core.masonry.api"