diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 55ac2ec..dac8d34 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -27,7 +27,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install flake8 pytest safety
+        python -m pip install flake8 pytest safety stix2
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
     - name: Lint with flake8
       run: |
diff --git a/test-requirements.txt b/test-requirements.txt
deleted file mode 100644
index c63164e..0000000
--- a/test-requirements.txt
+++ /dev/null
@@ -1 +0,0 @@
-pytest>=6.2.5