diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 6774da5..c0c44b6 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -1,7 +1,6 @@
 
 name: spora
 
-# Controls when the workflow will run
 on:
   push:
     branches:
@@ -14,21 +13,25 @@ jobs:
   build:
     name: spora test on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
+    env:
+      CONDA_OVERRIDE_CUDA: "11.8"
     strategy:
       matrix:
         os: ["ubuntu-latest", "macos-latest"]
-        python-version: ["3.8"]
+        python-version: ["3.9"]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      - if: runner.os == 'Linux'
+        run: sudo apt-get -y update && sudo apt-get install -y libgl1-mesa-dev libglfw3-dev
       - uses: conda-incubator/setup-miniconda@v2
         with:
           environment-file: environments/environment.yml
           activate-environment: ncov_spora
           channels: conda-forge,bioconda,defaults,r
-          mamba-version: "*" 
-      - uses: actions/setup-python@v4
-        with: 
-          python-version: ${{ matrix.python-version }}
+          miniconda-version: "latest"
       - name: Install spora
         run: pip install .
       - name: Check spora version
diff --git a/environments/environment.yml b/environments/environment.yml
index 99ffbd0..dce6d6b 100644
--- a/environments/environment.yml
+++ b/environments/environment.yml
@@ -13,11 +13,12 @@ dependencies:
   - fasttree=2.1.10
   - iqtree=2.1.2
   - mafft=7.480
-  - numpy=1.20.3
+  - numpy==1.24.3
   - pandas=1.2.4
   - pandoc=>2.1.3
   - pango=1.48.5
   - pip=21.1.2
+  - pulp==2.7.0
   - pytest=6.2.4
   - python=3.8.10
   - raxml=8.2.12
diff --git a/setup.py b/setup.py
index 2151ea6..bae8368 100644
--- a/setup.py
+++ b/setup.py
@@ -21,12 +21,12 @@
     },
     license='',
     author='Matthew Watson',
-    author_email='matthew.watson@oahpp.ca',
+    author_email='matt.sd.watson@gmail.com',
     description='spora: Streamlined Phylogenomic Outbreak Report Analysis',
     long_description_content_type="text/markdown",
     long_description = long_description,
-    install_requires = ["pandas>=1.1.5", "numpy>=1.19", "biopython>=1.79", "snakemake>=7.0.0", "pypandoc>=1.8",
-                        "pytest>=7.1.2", "click>=8.0.3"],
+    install_requires = ["pandas>=1.1.5", "numpy>=1.24.3", "biopython>=1.79", "snakemake>=7.0.0", "pypandoc>=1.8",
+                        "pytest>=7.1.2", "click>=8.0.3", "pulp==2.7.0"],
     entry_points="""
     [console_scripts]
     {program} = spora.main:main
diff --git a/spora/__init__.py b/spora/__init__.py
index bd29a78..a4ce392 100644
--- a/spora/__init__.py
+++ b/spora/__init__.py
@@ -1,2 +1,2 @@
 _program = "spora"
-__version__ = "0.7.0"
+__version__ = "0.7.1"