diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
index e63c6c9..d5ff2b9 100644
--- a/.github/workflows/unit-tests.yml
+++ b/.github/workflows/unit-tests.yml
@@ -22,7 +22,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip setuptools wheel
-        pip install .[tests]
+        pip install -r requirements.txt
 
     - name: Check black formatting
       uses: psf/black@stable
@@ -30,7 +30,6 @@ jobs:
     - name: Lint with mypy
       if: ${{ matrix.python-version == '3.9' }}  # only lint last Python version
       run: |
-        pip install mypy PyQt5-stubs types-pkg-resources types-setuptools
         mypy labelCloud/.
 
     - name: Test with pytest
diff --git a/requirements.txt b/requirements.txt
index e362055..059b76b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,16 +1,16 @@
-numpy~=1.23.2
-open3d~=0.15.1
-PyOpenGL~=3.1.6
+numpy>=1.21.6
+open3d>=0.15.2
+PyOpenGL==3.1.6  # prevents 'NoneType' object has no attribute 'glGetError'
 PyOpenGL-accelerate~=3.1.5
 PyQt5~=5.15.7
 
 # Testing
-pytest~=7.1.2
-pytest-qt~=4.1.0
+pytest~=7.3.1
+pytest-qt~=4.2.0
 
 # Development
 black~=23.1.0
-mypy~=0.971
+mypy~=1.3.0
 PyQt5-stubs~=5.15.6
-types-setuptools~=57.4.17
+types-setuptools~=67.8.0
 types-pkg-resources~=0.1.3
\ No newline at end of file