diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 87c6bc5..489b547 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -25,11 +25,11 @@ jobs:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
         run: |
-          python -m pip install --upgrade pip
           python -m venv env
           source env/bin/activate
+          python -m pip install --upgrade pip
           pip install setuptools
-          pip install numpy cython flake8 pytest
+          pip install cython flake8 pytest
           python setup.py install
       - name: Lint with flake8
         run: |
diff --git a/setup.py b/setup.py
index 77fb87d..3c61e28 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,8 @@
     readme = readme_file.read()
 
 requirements = [
-    "Click", "Pillow", "numpy; python_version>='3.9'",
+    "Click", "Pillow", "numpy; python_version>='3.10'",
+    "numpy<2.1.0; python_version>='3.9' and python_version<'3.10'"
     "numpy<1.25.0; python_version>='3.8' and python_version<'3.9'"
 ]