diff --git a/.github/workflows/_checks.yml b/.github/workflows/_checks.yml
index 071bf08..d8f8d42 100644
--- a/.github/workflows/_checks.yml
+++ b/.github/workflows/_checks.yml
@@ -27,6 +27,7 @@ jobs:
           - "3.12"
           - "3.13"
           - "3.14"
+          - "3.14t"
     steps:
       - uses: actions/checkout@v6
       - uses: extractions/setup-just@v4
@@ -37,6 +38,9 @@ jobs:
       - run: uv python install ${{ matrix.python-version }}
       - run: uv python pin ${{ matrix.python-version }}
       - run: just install
+      - name: Confirm the interpreter is free-threaded
+        if: matrix.python-version == '3.14t'
+        run: uv run --no-sync python -c "import sys, modern_di_taskiq; assert not sys._is_gil_enabled(), 'GIL is enabled on a t-build'"
       - run: just test-ci
 
   links:
diff --git a/pyproject.toml b/pyproject.toml
index 3be3765..b5dfe73 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,6 +14,7 @@ classifiers = [
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: 3.14",
+    "Programming Language :: Python :: Free Threading :: 2 - Beta",
     "Typing :: Typed",
     "Topic :: Software Development :: Libraries",
 ]