diff --git a/.github/workflows/hsp2-pip-install-test-dev.yml b/.github/workflows/hsp2-pip-install-test-dev.yml
deleted file mode 100644
index 5729bc1e..00000000
--- a/.github/workflows/hsp2-pip-install-test-dev.yml
+++ /dev/null
@@ -1,48 +0,0 @@
-name: Python dev application
-# this is a standard setup copied from
-# https://docs.github.com/en/enterprise-server@3.10/actions/automating-builds-and-tests/building-and-testing-python
-on:
-  push:
-    branches: [ "master" ]
-  pull_request:
-    branches: [ "master", "develop", "develop-specact" ]
-
-permissions:
-  contents: read
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python 3.11
-      uses: actions/setup-python@v4
-      with:
-        python-version: "3.11"
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install build
-        pip install flake8 pytest
-        pip install mando numba pandas tables
-    - name: Install hsp2
-      run: |
-        # install the hsp2 executable using dev environment
-        sudo pip install .[dev]
-    - name: Lint with flake8
-      run: |
-        # stop the build if there are Python syntax errors or undefined names
-        flake8 . --count --select=E9,F63,F7,F82 --ignore=F821 --show-source --statistics --exclude=HSP2/ACIDPH.py,build/lib/HSP2/ACIDPH.py
-        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
-    - name: Test with pytest
-      run: |
-        pytest tests/ptest/test_sysexit.py
-        # Add more tests here.  Example (note, benchmark takes a long time to run and could crush the free monthly 2,000 minutes during times of high activity)
-        # pytest tests/testcbp/HSP2results/benchmark.py
-    - name: Run hsp2 test10
-      run: |
-        cd tests/test10/HSP2results
-        hsp2 import_uci test10.uci test10.h5
-        hsp2 run test10.h5