diff --git a/.github/workflows/python-ci.yml b/.github/workflows/python-ci.yml
index 1f7dec7..e97b3a6 100644
--- a/.github/workflows/python-ci.yml
+++ b/.github/workflows/python-ci.yml
@@ -16,19 +16,18 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.7, 3.9]
+        python-version: [3.9, 3.11]
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
       run: |
         python3 -m pip install --upgrade pip
-        python3 -m pip install flake8
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        python3 -m pip install flake8 lxml
         python3 setup.py install
     - name: Lint code with Python ${{ matrix.python-version }}
       run: |
diff --git a/README.md b/README.md
index ebde3b0..d113766 100644
--- a/README.md
+++ b/README.md
@@ -5,4 +5,4 @@ MetaCast is a format to store and export metadata of rich media videos and an AP
 
 Examples of use are avaible in the tests folder.
 
-Requires: Python 3.7+
+Requires: Python 3.9+