diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b84918d..18ec8a9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+        python-version:
+          ["3.10", "3.11", "3.12", "3.13", "3.13t", "3.14", "3.14t"]
 
     steps:
       - uses: actions/checkout@v6
diff --git a/.python-version b/.python-version
index 6324d40..a469d8f 100644
--- a/.python-version
+++ b/.python-version
@@ -1 +1 @@
-3.14
+3.14t
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 7c68cbe..323bff4 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -31,6 +31,8 @@ docutils==0.22.4 ; python_full_version >= '3.11'
     #   sphinx
 exceptiongroup==1.3.1 ; python_full_version < '3.11'
     # via pytest
+free-threading==1.1.0
+    # via pyriodicity
 idna==3.11
     # via requests
 imagesize==1.4.1
diff --git a/pyproject.toml b/pyproject.toml
index 63519b5..19d6ee3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,6 +35,7 @@ classifiers = [
 dependencies = [
     "scipy~=1.15",
     "pywavelets~=1.8",
+    "free-threading~=1.1.0",
 ]
 
 [project.urls]
diff --git a/src/pyriodicity/static/robustperiod.py b/src/pyriodicity/static/robustperiod.py
index 8f5cadb..4afaa60 100644
--- a/src/pyriodicity/static/robustperiod.py
+++ b/src/pyriodicity/static/robustperiod.py
@@ -1,5 +1,4 @@
 import datetime
-from concurrent.futures import ProcessPoolExecutor
 from enum import Enum, unique
 from functools import partial
 from multiprocessing import cpu_count
@@ -7,6 +6,7 @@
 
 import numpy as np
 import pywt
+from freethreading import WorkerPoolExecutor
 from numpy.typing import ArrayLike, NDArray
 from scipy.optimize import minimize
 from scipy.signal import find_peaks
@@ -71,7 +71,7 @@ def compute(
                 The Huber M-Periodogram of the input data.
             """
 
-            with ProcessPoolExecutor(max_worker_count) as executor:
+            with WorkerPoolExecutor(max_worker_count) as executor:
                 periodogram = list(
                     executor.map(
                         partial(cls._compute_element, x, delta=delta), range(len(x))
diff --git a/uv.lock b/uv.lock
index 4e59b80..aa1bebc 100644
--- a/uv.lock
+++ b/uv.lock
@@ -326,6 +326,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/8a/0e/97c33bf5009bdbac74fd2beace167cab3f978feb69cc36f1ef79360d6c4e/exceptiongroup-1.3.1-py3-none-any.whl", hash = "sha256:a7a39a3bd276781e98394987d3a5701d0c4edffb633bb7a5144577f82c773598", size = 16740, upload-time = "2025-11-21T23:01:53.443Z" },
 ]
 
+[[package]]
+name = "free-threading"
+version = "1.1.0"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/99/ae/78bf0c2925e72d53c44b3f5837867250c56bc72f54f98dcf1edb373111f9/free_threading-1.1.0.tar.gz", hash = "sha256:2b54933573543ff5e30a2f02ddcd593efff0f429d34033f5882908c9d93c49d8", size = 11760, upload-time = "2025-12-29T23:33:36.022Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/ed/ef/750d2d856a9086bb94d1f8d4adf099ec6684f2223c9e4308ef92b2e8353d/free_threading-1.1.0-py3-none-any.whl", hash = "sha256:30057e59e4db574ec02db17b3400850062fdc612383a9332ddb2b8a443cdab29", size = 12747, upload-time = "2025-12-29T23:33:37.01Z" },
+]
+
 [[package]]
 name = "idna"
 version = "3.11"
@@ -821,6 +830,7 @@ name = "pyriodicity"
 version = "0.7.0rc0"
 source = { editable = "." }
 dependencies = [
+    { name = "free-threading" },
     { name = "pywavelets", version = "1.8.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.11'" },
     { name = "pywavelets", version = "1.9.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.11'" },
     { name = "scipy", version = "1.15.3", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.11'" },
@@ -841,6 +851,7 @@ docs = [
 
 [package.metadata]
 requires-dist = [
+    { name = "free-threading", specifier = "~=1.1.0" },
     { name = "pywavelets", specifier = "~=1.8" },
     { name = "scipy", specifier = "~=1.15" },
 ]