diff --git a/.github/workflows/test_build.yml b/.github/workflows/test_build.yml
index 6420294..16e59de 100644
--- a/.github/workflows/test_build.yml
+++ b/.github/workflows/test_build.yml
@@ -33,7 +33,7 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         python -m pip install .[dev,cli]
-        python -m pip install 'opencv-python-headless>=4.8,<4.9'
+        python -m pip install 'opencv-python-headless>=4.8,<5'
     - name: Lint
       run: |
         poe lint
diff --git a/pyproject.toml b/pyproject.toml
index d139d16..237cba7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,7 +40,7 @@ cli = [
     "tabulate >=0.9.0,<1",
     "font-roboto >=0.0.1",
 ]
-opencv = ["opencv-python-headless >=4,<4.9"]
+opencv = ["opencv-python-headless >=4,<5"]
 
 [project.scripts]
 april_vision = "april_vision.cli:main"