diff --git a/.github/workflows/python-ci.yml b/.github/workflows/python-ci.yml
index 37d9c09..7d81791 100644
--- a/.github/workflows/python-ci.yml
+++ b/.github/workflows/python-ci.yml
@@ -18,73 +18,29 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version:
-          [
-            "3.5",
-            "3.6",
-            "3.7",
-            "3.8",
-            "3.9",
-            "3.10",
-            "3.11",
-            "3.12",
-            "3.13",
-            "3.14",
-          ]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
         os: [windows-latest, macos-latest, ubuntu-latest]
-        exclude: # Python < v3.8 does not support Apple Silicon ARM64.
-          - python-version: "3.5"
-            os: macos-latest
-          - python-version: "3.6"
-            os: macos-latest
-          - python-version: "3.7"
-            os: macos-latest
-        include: # So run those legacy versions on Intel CPUs.
-          - python-version: "3.5"
-            os: macos-13
-          - python-version: "3.6"
-            os: macos-13
-          - python-version: "3.7"
-            os: macos-13
 
     steps:
       - uses: actions/checkout@v5
 
-      - name: Run tests in Docker for legacy Python
-        if: matrix.os == 'ubuntu-latest' && contains(fromJSON('["3.5","3.6","3.7"]'), matrix.python-version)
-        run: |
-          docker run --rm -v ${{ github.workspace }}:/app -w /app python:${{ matrix.python-version }} bash -c "
-            pip install --upgrade pip &&
-            pip install pytest pytest-cov parameterized mock flake8 &&
-            pip install -r requirements.txt &&
-            flake8 configcatclient --count --show-source --statistics &&
-            pytest configcatclienttests
-          "
-
       - name: Set up Python ${{ matrix.python-version }}
-        if: ${{ !(matrix.os == 'ubuntu-latest' && contains(fromJSON('["3.5","3.6","3.7"]'), matrix.python-version)) }}
         uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
-        env:
-          # Needed on Ubuntu for Python 3.5 build.
-          PIP_TRUSTED_HOST: "pypi.python.org pypi.org files.pythonhosted.org"
 
       - name: Install dependencies
-        if: ${{ !(matrix.os == 'ubuntu-latest' && contains(fromJSON('["3.5","3.6","3.7"]'), matrix.python-version)) }}
         run: |
-          python -m pip install --upgrade pip
+          python -m pip install --upgrade pip 
           pip install pytest pytest-cov parameterized mock flake8
           pip install -r requirements.txt
 
       - name: Lint with flake8
-        if: ${{ !(matrix.os == 'ubuntu-latest' && contains(fromJSON('["3.5","3.6","3.7"]'), matrix.python-version)) }}
         run: |
           # Statical analysis
           flake8 configcatclient --count --show-source --statistics
 
       - name: Test
-        if: ${{ !(matrix.os == 'ubuntu-latest' && contains(fromJSON('["3.5","3.6","3.7"]'), matrix.python-version)) }}
         run: pytest configcatclienttests
 
   coverage:
@@ -100,7 +56,7 @@ jobs:
 
       - name: Install dependencies
         run: |
-          python -m pip install --upgrade pip
+          python -m pip install --upgrade pip 
           pip install pytest pytest-cov parameterized mock flake8
           pip install -r requirements.txt
 
diff --git a/setup.py b/setup.py
index 50566fe..cc29c48 100644
--- a/setup.py
+++ b/setup.py
@@ -30,11 +30,6 @@ def parse_requirements(filename):
         'License :: OSI Approved :: MIT License',
         'Operating System :: OS Independent',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.5',
-        'Programming Language :: Python :: 3.6',
-        'Programming Language :: Python :: 3.7',
-        'Programming Language :: Python :: 3.8',
-        'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
         'Programming Language :: Python :: 3.12',