diff --git a/.github/workflows/build_wheels.yml b/.github/workflows/build_wheels.yml
index 37a80387..20af6dbe 100644
--- a/.github/workflows/build_wheels.yml
+++ b/.github/workflows/build_wheels.yml
@@ -27,7 +27,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: ">=3.10.0"
+          python-version: ">=3.11.0"
 
       - name: Verify QuadBLAS submodule
         run: |
@@ -35,11 +35,12 @@ jobs:
           ls -la quaddtype/numpy_quaddtype/QBLAS/include/quadblas/
 
       - name: Install cibuildwheel
-        run: pip install cibuildwheel==2.20.0
+        run: pip install cibuildwheel==3.1.4
 
       - name: Build wheels
         env:
-          CIBW_BUILD: "cp310-manylinux_x86_64 cp311-manylinux_x86_64 cp312-manylinux_x86_64"
+          CIBW_BUILD: "cp310-manylinux_x86_64 cp311-manylinux_x86_64 cp312-manylinux_x86_64 cp313-manylinux_x86_64 cp313t-manylinux_x86_64 cp314-manylinux_x86_64 cp314t-manylinux_x86_64"
+          CIBW_ENABLE: cpython-prerelease cpython-freethreading
           CIBW_MANYLINUX_X86_64_IMAGE: manylinux_2_28
           CIBW_BUILD_VERBOSITY: "3"
           CIBW_BEFORE_ALL: |
@@ -64,7 +65,11 @@ jobs:
             auditwheel repair -w {dest_dir} --plat manylinux_2_28_x86_64 {wheel}
           CIBW_TEST_COMMAND: |
             pip install {package}[test]
-            pytest -s {project}/tests
+            if python -c "import sys; exit(0 if hasattr(sys, '_is_gil_enabled') and not sys._is_gil_enabled() else 1)"; then
+              pytest --parallel-threads=10 --iterations=10 {project}/tests
+            else
+              pytest -s {project}/tests
+            fi
           CIBW_TEST_EXTRAS: "test"
         run: |
           python -m cibuildwheel --output-dir wheelhouse
@@ -90,7 +95,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: "3.10"
+          python-version: ">=3.11.0"
 
       - name: Install dependencies
         run: |
@@ -117,12 +122,16 @@ jobs:
           ls -la quaddtype/numpy_quaddtype/QBLAS/
           ls -la quaddtype/numpy_quaddtype/QBLAS/include/quadblas/
 
-      - name: Install cibuildwheel
-        run: pip install cibuildwheel==2.20.0
+      - name: Installing Python dependencies
+        run: |
+          pip install -U pip
+          pip install cibuildwheel==3.1.4
+          pip install pytest-run-parallel
 
       - name: Build wheels
         env:
-          CIBW_BUILD: "cp310-* cp311-* cp312-*"
+          CIBW_BUILD: "cp310-* cp311-* cp312-* cp313-* cp314-* cp313t-* cp314t-*"
+          CIBW_ENABLE: cpython-prerelease cpython-freethreading
           CIBW_ARCHS_MACOS: ${{ matrix.os == 'macos-13' && 'x86_64' || 'arm64' }}
           CIBW_BUILD_VERBOSITY: "3"
           CIBW_ENVIRONMENT: >
@@ -136,7 +145,11 @@ jobs:
             delocate-wheel --require-archs {delocate_archs} -w {dest_dir} -v {wheel}
           CIBW_TEST_COMMAND: |
             pip install {package}[test]
-            pytest -s {project}/tests
+            if python -c "import sys; exit(0 if hasattr(sys, '_is_gil_enabled') and not sys._is_gil_enabled() else 1)"; then
+              pytest --parallel-threads=10 --iterations=10 {project}/tests
+            else
+              pytest -s {project}/tests
+            fi
           CIBW_TEST_EXTRAS: "test"
         run: |
           python -m cibuildwheel --output-dir wheelhouse
@@ -165,10 +178,10 @@ jobs:
         with:
           arch: ${{ matrix.architecture }}
 
-      - name: Set up Python 3.10
+      - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: "3.10"
+          python-version: ">=3.11.0"
           architecture: ${{ matrix.architecture }}
 
       - name: Install CMake
@@ -193,12 +206,13 @@ jobs:
         shell: bash -l {0}
         run: |
           pip install -U pip
-          pip install cibuildwheel==2.20.0 ninja meson meson-python numpy delvewheel pytest
+          pip install cibuildwheel==3.1.4 ninja meson meson-python numpy delvewheel pytest
 
       - name: Build wheels
         env:
-          CIBW_BUILD: "cp310-* cp311-* cp312-*"
-          CIBW_SKIP: "pp* cp36-* cp37-* cp38-* cp39-* cp313-*"
+          CIBW_BUILD: "cp310-* cp311-* cp312-* cp313-* cp314-* cp313t-* cp314t-*"
+          CIBW_ENABLE: cpython-prerelease cpython-freethreading
+          CIBW_SKIP: "pp* cp36-* cp37-* cp38-* cp39-*"
           CIBW_ARCHS_WINDOWS: ${{ matrix.architecture == 'x86' && 'x86' || 'AMD64' }}
           CIBW_BUILD_VERBOSITY: "3"
           DISTUTILS_USE_SDK: "1"
@@ -215,7 +229,11 @@ jobs:
           CIBW_REPAIR_WHEEL_COMMAND: 'delvewheel repair -w {dest_dir} {wheel} --add-path C:\sleef\bin'
           CIBW_TEST_COMMAND: |
             pip install {package}[test]
-            pytest -s {project}/tests
+            if python -c "import sys; exit(0 if hasattr(sys, '_is_gil_enabled') and not sys._is_gil_enabled() else 1)"; then
+              pytest --parallel-threads=10 --iterations=10 {project}/tests
+            else
+              pytest -s {project}/tests
+            fi
           CIBW_TEST_EXTRAS: test
           CIBW_TEST_FAIL_FAST: 1
         shell: pwsh
diff --git a/quaddtype/numpy_quaddtype/src/quaddtype_main.c b/quaddtype/numpy_quaddtype/src/quaddtype_main.c
index 39f3da8a..929927a4 100644
--- a/quaddtype/numpy_quaddtype/src/quaddtype_main.c
+++ b/quaddtype/numpy_quaddtype/src/quaddtype_main.c
@@ -80,14 +80,17 @@ get_sleef_constant(PyObject *self, PyObject *args)
     else if (strcmp(constant_name, "precision") == 0) {
         Py_DECREF(result);
         // precision = int(-log10(epsilon))
-        int64_t precision = Sleef_cast_to_int64q1(Sleef_negq1(Sleef_log10q1_u10(SLEEF_QUAD_EPSILON)));
+        int64_t precision =
+                Sleef_cast_to_int64q1(Sleef_negq1(Sleef_log10q1_u10(SLEEF_QUAD_EPSILON)));
         return PyLong_FromLong(precision);
     }
     else if (strcmp(constant_name, "resolution") == 0) {
         // precision = int(-log10(epsilon))
-        int64_t precision = Sleef_cast_to_int64q1(Sleef_negq1(Sleef_log10q1_u10(SLEEF_QUAD_EPSILON)));
+        int64_t precision =
+                Sleef_cast_to_int64q1(Sleef_negq1(Sleef_log10q1_u10(SLEEF_QUAD_EPSILON)));
         // resolution = 10 ** (-precision)
-        result->value.sleef_value = Sleef_powq1_u10(Sleef_cast_from_int64q1(10), Sleef_cast_from_int64q1(-precision));
+        result->value.sleef_value =
+                Sleef_powq1_u10(Sleef_cast_from_int64q1(10), Sleef_cast_from_int64q1(-precision));
     }
     else {
         PyErr_SetString(PyExc_ValueError, "Unknown constant name");
@@ -109,9 +112,12 @@ static PyMethodDef module_methods[] = {
         {NULL, NULL, 0, NULL}};
 
 static struct PyModuleDef moduledef = {
-        PyModuleDef_HEAD_INIT, .m_name = "_quaddtype_main",
+        PyModuleDef_HEAD_INIT,
+        .m_name = "_quaddtype_main",
         .m_doc = "Quad (128-bit) floating point Data Type for NumPy with multiple backends",
-        .m_size = -1, .m_methods = module_methods};
+        .m_size = -1,
+        .m_methods = module_methods,
+};
 
 PyMODINIT_FUNC
 PyInit__quaddtype_main(void)
@@ -123,6 +129,10 @@ PyInit__quaddtype_main(void)
         return NULL;
     }
 
+#ifdef Py_GIL_DISABLED
+    PyUnstable_Module_SetGIL(m, Py_MOD_GIL_NOT_USED);
+#endif
+
     if (init_quadprecision_scalar() < 0)
         goto error;
 
diff --git a/quaddtype/pyproject.toml b/quaddtype/pyproject.toml
index 30898c72..3f42895b 100644
--- a/quaddtype/pyproject.toml
+++ b/quaddtype/pyproject.toml
@@ -21,4 +21,5 @@ dependencies = [
 [project.optional-dependencies]
 test = [
     "pytest",
+    "pytest-run-parallel"
 ]
\ No newline at end of file