diff --git a/.github/workflows/build-push-to-main.yaml b/.github/workflows/build-push-to-main.yaml
index 47273aa0..b3c79178 100644
--- a/.github/workflows/build-push-to-main.yaml
+++ b/.github/workflows/build-push-to-main.yaml
@@ -11,10 +11,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v5
-    - name: Set up Python 3.9
+    - name: Set up Python 3.10
       uses: actions/setup-python@v6
       with:
-        python-version: 3.9
+        python-version: '3.10'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
@@ -37,7 +37,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python_ver: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        python_ver: ["3.10", "3.11", "3.12", "3.13"]
     steps:
     - uses: actions/checkout@v5
     - name: Set up Python ${{ matrix.python_ver }}
@@ -64,10 +64,10 @@ jobs:
       TWINE_USERNAME: "__token__"
     steps:
     - uses: actions/checkout@v5
-    - name: Set up Python 3.9
+    - name: Set up Python 3.10
       uses: actions/setup-python@v6
       with:
-        python-version: 3.9
+        python-version: '3.10'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
diff --git a/.github/workflows/build-tag.yaml b/.github/workflows/build-tag.yaml
index 176fbaf0..4033f901 100644
--- a/.github/workflows/build-tag.yaml
+++ b/.github/workflows/build-tag.yaml
@@ -15,10 +15,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v5
-    - name: Set up Python 3.9
+    - name: Set up Python 3.10
       uses: actions/setup-python@v6
       with:
-        python-version: 3.9
+        python-version: '3.10'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
@@ -41,7 +41,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python_ver: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        python_ver: ["3.10", "3.11", "3.12", "3.13"]
     steps:
     - uses: actions/checkout@v5
     - name: Set up Python ${{ matrix.python_ver }}
@@ -68,10 +68,10 @@ jobs:
       TWINE_USERNAME: "__token__"
     steps:
     - uses: actions/checkout@v5
-    - name: Set up Python 3.9
+    - name: Set up Python 3.10
       uses: actions/setup-python@v6
       with:
-        python-version: 3.9
+        python-version: '3.10'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index e2a25423..fa89c39e 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -17,10 +17,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v5
-    - name: Set up Python 3.9
+    - name: Set up Python 3.10
       uses: actions/setup-python@v6
       with:
-        python-version: 3.9
+        python-version: '3.10'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
@@ -43,7 +43,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python_ver: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        python_ver: ["3.10", "3.11", "3.12", "3.13"]
     steps:
     - uses: actions/checkout@v5
     - name: Set up Python ${{ matrix.python_ver }}
diff --git a/.github/workflows/validate_examples.yaml b/.github/workflows/validate_examples.yaml
index e55a2291..45b09875 100644
--- a/.github/workflows/validate_examples.yaml
+++ b/.github/workflows/validate_examples.yaml
@@ -46,7 +46,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python_ver: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        python_ver: ["3.10", "3.11", "3.12", "3.13"]
     steps:
       - name: Parse repository_dispatch payload
         if: github.event_name == 'repository_dispatch'
diff --git a/tox.ini b/tox.ini
index 45c54da5..17041083 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,8 +1,8 @@
 [tox]
 skipsdist = True
-minversion = 3.9.0
+minversion = 3.10.0
 envlist =
-    py{39,310,311,312,313}
+    py{310,311,312,313}
     ruff,
     mypy,