diff --git a/.github/workflows/analysis-coverage.yml b/.github/workflows/analysis-coverage.yml
index ca4a7120..795132df 100644
--- a/.github/workflows/analysis-coverage.yml
+++ b/.github/workflows/analysis-coverage.yml
@@ -29,7 +29,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.12'
+          python-version: '3.14'
 
       - name: Install Libheif
         run: brew install libheif
@@ -48,7 +48,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.11'
+          python-version: '3.14'
 
       - name: Prepare system
         run: |
@@ -93,7 +93,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.12'
+          python-version: '3.14'
 
       - name: Prepare system
         run: |
@@ -142,7 +142,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.10'
+          python-version: '3.14'
 
       - name: Install Libheif
         run: brew install libheif
@@ -179,7 +179,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.11'
+          python-version: '3.14'
 
       - name: Install Libheif
         run: brew install libheif
@@ -218,7 +218,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.9'
+          python-version: '3.14'
 
       - uses: msys2/setup-msys2@v2
         with:
@@ -303,7 +303,7 @@ jobs:
 
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.13'
+          python-version: '3.14'
           allow-prereleases: true
 
       - name: Prepare system
@@ -351,7 +351,7 @@ jobs:
 
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.13'
+          python-version: '3.14'
           allow-prereleases: true
 
       - name: Prepare system
@@ -379,7 +379,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.12'
+          python-version: '3.14'
 
       - name: Install Libheif
         run: brew install libheif
diff --git a/.github/workflows/test-src-build-macos.yml b/.github/workflows/test-src-build-macos.yml
index 64e55264..d4ffc7de 100644
--- a/.github/workflows/test-src-build-macos.yml
+++ b/.github/workflows/test-src-build-macos.yml
@@ -63,7 +63,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.12'
+          python-version: '3.14'
 
       - name: Uninstall libheif from homebrew
         run: brew uninstall --force --ignore-dependencies imagemagick libheif x265 aom libde265
@@ -122,7 +122,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.12'
+          python-version: '3.14'
 
       - name: Transform to Pi-Heif
         run: |
diff --git a/.github/workflows/test-src-build-windows.yml b/.github/workflows/test-src-build-windows.yml
index 4e65e0cd..81ef461a 100644
--- a/.github/workflows/test-src-build-windows.yml
+++ b/.github/workflows/test-src-build-windows.yml
@@ -42,7 +42,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.11'
+          python-version: '3.14'
 
       - uses: msys2/setup-msys2@v2
         with:
@@ -90,7 +90,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.10'
+          python-version: '3.14'
 
       - name: Transform to Pi-Heif
         run: |
diff --git a/.github/workflows/wheels-pi_heif.yml b/.github/workflows/wheels-pi_heif.yml
index a8aaec7b..707f195f 100644
--- a/.github/workflows/wheels-pi_heif.yml
+++ b/.github/workflows/wheels-pi_heif.yml
@@ -19,7 +19,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.12'
+          python-version: '3.14'
 
       - name: Transform to Pi-Heif
         run: |
@@ -66,7 +66,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.11'
+          python-version: '3.14'
       - name: Transform to Pi-Heif
         run: |
           cp -r -v -force ./pi-heif/* .
@@ -255,7 +255,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.12'
+          python-version: '3.14'
 
       - name: Transform to Pi-Heif
         run: |
diff --git a/.github/workflows/wheels-pillow_heif.yml b/.github/workflows/wheels-pillow_heif.yml
index bb7bb382..a1da527a 100644
--- a/.github/workflows/wheels-pillow_heif.yml
+++ b/.github/workflows/wheels-pillow_heif.yml
@@ -18,7 +18,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.12'
+          python-version: '3.14'
 
       - name: Uninstall libheif from homebrew
         run: brew uninstall --force --ignore-dependencies imagemagick libheif x265 aom libde265
@@ -60,7 +60,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.11'
+          python-version: '3.14'
       - uses: msys2/setup-msys2@v2
         with:
           location: C:/temp
@@ -246,7 +246,7 @@ jobs:
       - uses: actions/checkout@v5
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.12'
+          python-version: '3.14'
 
       - name: Install requirements
         run: python3 -m pip install twine wheel build check-manifest