diff --git a/.github/workflows/check_code_quality.yml b/.github/workflows/check_code_quality.yml
index c429b706bf..861684cfa4 100644
--- a/.github/workflows/check_code_quality.yml
+++ b/.github/workflows/check_code_quality.yml
@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.8]
+        python-version: [3.9]
         os: [ubuntu-20.04]
 
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test_benckmark.yml b/.github/workflows/test_benckmark.yml
index 7f7f2ace32..e859e845d6 100644
--- a/.github/workflows/test_benckmark.yml
+++ b/.github/workflows/test_benckmark.yml
@@ -4,9 +4,9 @@ name: Benchmark suite / Python - Test
 
 on:
   push:
-    branches: [ main ]
+    branches: [main]
   pull_request:
-    branches: [ main ]
+    branches: [main]
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
@@ -17,20 +17,20 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.8, 3.9]
+        python-version: [3.9]
         os: [ubuntu-20.04]
 
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v2
-    - name: Setup Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
-      with:
-        python-version: ${{ matrix.python-version }}
-    - name: Install dependencies
-      run: |
-        pip install wheel
-        pip install .[tests,onnxruntime,benchmark]
-    - name: Test with unittest
-      run: |
-        python -m unittest discover --start-directory tests/benchmark --pattern 'test_*.py'
+      - uses: actions/checkout@v2
+      - name: Setup Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          pip install wheel
+          pip install .[tests,onnxruntime,benchmark]
+      - name: Test with unittest
+        run: |
+          python -m unittest discover --start-directory tests/benchmark --pattern 'test_*.py'
diff --git a/.github/workflows/test_cli.yml b/.github/workflows/test_cli.yml
index ecb19d23aa..be000caf6a 100644
--- a/.github/workflows/test_cli.yml
+++ b/.github/workflows/test_cli.yml
@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.8, 3.9]
+        python-version: [3.9]
         os: [ubuntu-20.04, macos-13]
 
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test_export_onnx.yml b/.github/workflows/test_export_onnx.yml
index 56ef674cb4..0cd19a1724 100644
--- a/.github/workflows/test_export_onnx.yml
+++ b/.github/workflows/test_export_onnx.yml
@@ -2,9 +2,9 @@ name: Exporters ONNX / Python - Test
 
 on:
   push:
-    branches: [ main ]
+    branches: [main]
   pull_request:
-    branches: [ main ]
+    branches: [main]
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
@@ -15,27 +15,27 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.8, 3.9]
+        python-version: [3.9]
         os: [ubuntu-20.04]
 
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v2
-    - name: Setup Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
-      with:
-        python-version: ${{ matrix.python-version }}
-    - name: Install dependencies for pytorch export
-      run: |
-        pip install .[tests,exporters]
-    - name: Test with unittest
-      working-directory: tests
-      run: |
-        pytest exporters/onnx/test_onnx_*.py -s -n auto -m "not tensorflow_test and not timm_test" --durations=0
-    - name: Install dependencies for tensorflow export
-      run: |
-        pip install .[tests,exporters-tf]
-    - name: Test with unittest
-      working-directory: tests
-      run: |
-        pytest exporters/onnx/test_onnx_*.py -n auto -m "tensorflow_test" -s --durations=0
+      - uses: actions/checkout@v2
+      - name: Setup Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies for pytorch export
+        run: |
+          pip install .[tests,exporters]
+      - name: Test with unittest
+        working-directory: tests
+        run: |
+          pytest exporters/onnx/test_onnx_*.py -s -n auto -m "not tensorflow_test and not timm_test" --durations=0
+      - name: Install dependencies for tensorflow export
+        run: |
+          pip install .[tests,exporters-tf]
+      - name: Test with unittest
+        working-directory: tests
+        run: |
+          pytest exporters/onnx/test_onnx_*.py -n auto -m "tensorflow_test" -s --durations=0
diff --git a/.github/workflows/test_export_onnx_cli.yml b/.github/workflows/test_export_onnx_cli.yml
index 8fa4ebb045..618a140c14 100644
--- a/.github/workflows/test_export_onnx_cli.yml
+++ b/.github/workflows/test_export_onnx_cli.yml
@@ -2,9 +2,9 @@ name: Exporters ONNX CLI / Python - Test
 
 on:
   push:
-    branches: [ main ]
+    branches: [main]
   pull_request:
-    branches: [ main ]
+    branches: [main]
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
@@ -15,20 +15,20 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.8, 3.9]
+        python-version: [3.9]
         os: [ubuntu-20.04]
 
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v2
-    - name: Setup Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
-      with:
-        python-version: ${{ matrix.python-version }}
-    - name: Install dependencies for pytorch export
-      run: |
-        pip install .[tests,exporters]
-    - name: Test with unittest
-      working-directory: tests
-      run: |
-        pytest exporters/onnx/test_exporters_onnx_cli.py -n auto -m "not tensorflow_test and not timm_test" -s --durations=0
+      - uses: actions/checkout@v2
+      - name: Setup Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies for pytorch export
+        run: |
+          pip install .[tests,exporters]
+      - name: Test with unittest
+        working-directory: tests
+        run: |
+          pytest exporters/onnx/test_exporters_onnx_cli.py -n auto -m "not tensorflow_test and not timm_test" -s --durations=0
diff --git a/.github/workflows/test_export_onnx_cli_timm.yml b/.github/workflows/test_export_onnx_cli_timm.yml
index 76a535fceb..b92d5551ba 100644
--- a/.github/workflows/test_export_onnx_cli_timm.yml
+++ b/.github/workflows/test_export_onnx_cli_timm.yml
@@ -14,20 +14,20 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.8, 3.9]
+        python-version: [3.9]
         os: [ubuntu-20.04]
 
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v2
-    - name: Setup Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
-      with:
-        python-version: ${{ matrix.python-version }}
-    - name: Install dependencies for pytorch export
-      run: |
-        pip install .[tests,exporters]
-    - name: Test with unittest
-      working-directory: tests
-      run: |
-        RUN_SLOW=1 pytest exporters/onnx/test_exporters_onnx_cli.py -n auto -k "timm" -s --durations=0
+      - uses: actions/checkout@v2
+      - name: Setup Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies for pytorch export
+        run: |
+          pip install .[tests,exporters]
+      - name: Test with unittest
+        working-directory: tests
+        run: |
+          RUN_SLOW=1 pytest exporters/onnx/test_exporters_onnx_cli.py -n auto -k "timm" -s --durations=0
diff --git a/.github/workflows/test_export_onnx_timm.yml b/.github/workflows/test_export_onnx_timm.yml
index 339e3e93de..c16d20fbc1 100644
--- a/.github/workflows/test_export_onnx_timm.yml
+++ b/.github/workflows/test_export_onnx_timm.yml
@@ -14,21 +14,20 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.8, 3.9]
+        python-version: [3.9]
         os: [ubuntu-20.04]
 
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v2
-    - name: Setup Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
-      with:
-        python-version: ${{ matrix.python-version }}
-    - name: Install dependencies for pytorch export
-      run: |
-        pip install .[tests,exporters]
-    - name: Test with unittest
-      working-directory: tests
-      run: |
-        RUN_SLOW=1 pytest exporters/onnx/ -s -n auto -k "timm" --durations=0
-
+      - uses: actions/checkout@v2
+      - name: Setup Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies for pytorch export
+        run: |
+          pip install .[tests,exporters]
+      - name: Test with unittest
+        working-directory: tests
+        run: |
+          RUN_SLOW=1 pytest exporters/onnx/ -s -n auto -k "timm" --durations=0
diff --git a/.github/workflows/test_exporters_common.yml b/.github/workflows/test_exporters_common.yml
index 8e8c3360c1..11f6038afe 100644
--- a/.github/workflows/test_exporters_common.yml
+++ b/.github/workflows/test_exporters_common.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.8, 3.9]
+        python-version: [3.9]
         os: [ubuntu-20.04]
 
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test_exporters_slow.yml b/.github/workflows/test_exporters_slow.yml
index b22fdd7fd2..453389d63f 100644
--- a/.github/workflows/test_exporters_slow.yml
+++ b/.github/workflows/test_exporters_slow.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.8, 3.9]
+        python-version: [3.9]
         os: [ubuntu-20.04]
 
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test_fx.yml b/.github/workflows/test_fx.yml
index f0366cf0d1..a4e6dd3cd2 100644
--- a/.github/workflows/test_fx.yml
+++ b/.github/workflows/test_fx.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.8, 3.9]
+        python-version: [3.9]
         os: [ubuntu-20.04, macos-13]
 
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test_offline.yml b/.github/workflows/test_offline.yml
index 90b0108e51..20911fe6db 100644
--- a/.github/workflows/test_offline.yml
+++ b/.github/workflows/test_offline.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.8, 3.9]
+        python-version: [3.9]
         os: [ubuntu-20.04]
 
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test_onnx.yml b/.github/workflows/test_onnx.yml
index 22a1172079..dd1f3bee63 100644
--- a/.github/workflows/test_onnx.yml
+++ b/.github/workflows/test_onnx.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.8, 3.9]
+        python-version: [3.9]
         os: [ubuntu-20.04, macos-14]
 
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test_onnxruntime.yml b/.github/workflows/test_onnxruntime.yml
index a72bedb1ab..7bbe00bd15 100644
--- a/.github/workflows/test_onnxruntime.yml
+++ b/.github/workflows/test_onnxruntime.yml
@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.8, 3.9]
+        python-version: [3.9]
         os: [ubuntu-20.04, windows-2019, macos-13]
 
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test_onnxruntime_slow.yml b/.github/workflows/test_onnxruntime_slow.yml
index 20371f7915..c5679e5b30 100644
--- a/.github/workflows/test_onnxruntime_slow.yml
+++ b/.github/workflows/test_onnxruntime_slow.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.8, 3.9]
+        python-version: [3.9]
         os: [ubuntu-20.04]
 
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/test_optimum_common.yml b/.github/workflows/test_optimum_common.yml
index ded149c9b6..5ad42807a5 100644
--- a/.github/workflows/test_optimum_common.yml
+++ b/.github/workflows/test_optimum_common.yml
@@ -4,9 +4,9 @@ name: Optimum common / Python - Test
 
 on:
   push:
-    branches: [ main ]
+    branches: [main]
   pull_request:
-    branches: [ main ]
+    branches: [main]
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
@@ -17,25 +17,24 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.8, 3.9]
+        python-version: [3.9]
         os: [ubuntu-20.04, windows-2019, macos-13]
 
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v2
-    - name: Setup Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
-      with:
-        python-version: ${{ matrix.python-version }}
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install .[tests]
-        ls -l optimum/
-    - name: Test with unittest
-      shell: bash
-      run: |
-        # Setting HUGGINGFACE_CO_STAGING to true for only one job of the matrix as the staging tests cannot run in parallel.
-        export HUGGINGFACE_CO_STAGING=${{ matrix.python-version == '3.8' && matrix.os == 'ubuntu-20.04' }}
-        pytest tests/test_*.py
-        
+      - uses: actions/checkout@v2
+      - name: Setup Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install .[tests]
+          ls -l optimum/
+      - name: Test with unittest
+        shell: bash
+        run: |
+          # Setting HUGGINGFACE_CO_STAGING to true for only one job of the matrix as the staging tests cannot run in parallel.
+          export HUGGINGFACE_CO_STAGING=${{ matrix.python-version == '3.8' && matrix.os == 'ubuntu-20.04' }}
+          pytest tests/test_*.py
diff --git a/.github/workflows/test_utils.yml b/.github/workflows/test_utils.yml
index 1ef33ced08..b5f2e27fc6 100644
--- a/.github/workflows/test_utils.yml
+++ b/.github/workflows/test_utils.yml
@@ -16,7 +16,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-20.04, macos-13]
-        python-version: [3.8, 3.9]
+        python-version: [3.9]
 
     runs-on: ${{ matrix.os }}
     steps: