diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index 878898f4..796368ac 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -17,7 +17,7 @@ jobs:
   # whether the workflow is triggered from a PR, a push to main, or a release, respectively.
   python-packaging:
     name: 🐍 Packaging
-    uses: cda-tum/mqt-workflows/.github/workflows/reusable-python-packaging.yml@v1.4
+    uses: cda-tum/mqt-workflows/.github/workflows/reusable-python-packaging.yml@v1.5
     with:
       # Do not include local version information on pushes to main to facilitate TestPyPI uploads.
       no-local-version: ${{ github.ref == 'refs/heads/main' && github.event_name == 'push' }}
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 69378d66..94e304d2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,13 +14,13 @@ concurrency:
 jobs:
   change-detection:
     name: 🔍 Change
-    uses: cda-tum/mqt-workflows/.github/workflows/reusable-change-detection.yml@v1.4
+    uses: cda-tum/mqt-workflows/.github/workflows/reusable-change-detection.yml@v1.5
 
   cpp-tests:
     name: 🇨‌ Test
     needs: change-detection
     if: fromJSON(needs.change-detection.outputs.run-cpp-tests)
-    uses: cda-tum/mqt-workflows/.github/workflows/reusable-cpp-ci.yml@v1.4
+    uses: cda-tum/mqt-workflows/.github/workflows/reusable-cpp-ci.yml@v1.5
     with:
       cmake-args: ""
       cmake-args-ubuntu: -G Ninja
@@ -31,25 +31,25 @@ jobs:
     name: 🇨‌ Lint
     needs: change-detection
     if: fromJSON(needs.change-detection.outputs.run-cpp-linter)
-    uses: cda-tum/mqt-workflows/.github/workflows/reusable-cpp-linter.yml@v1.4
+    uses: cda-tum/mqt-workflows/.github/workflows/reusable-cpp-linter.yml@v1.5
 
   python-tests:
     name: 🐍 Test
     needs: change-detection
     if: fromJSON(needs.change-detection.outputs.run-python-tests)
-    uses: cda-tum/mqt-workflows/.github/workflows/reusable-python-ci.yml@v1.4
+    uses: cda-tum/mqt-workflows/.github/workflows/reusable-python-ci.yml@v1.5
 
   code-ql:
     name: 📝 CodeQL
     needs: change-detection
     if: fromJSON(needs.change-detection.outputs.run-code-ql)
-    uses: cda-tum/mqt-workflows/.github/workflows/reusable-code-ql.yml@v1.4
+    uses: cda-tum/mqt-workflows/.github/workflows/reusable-code-ql.yml@v1.5
 
   cd:
     name: 🚀 CD
     needs: change-detection
     if: fromJSON(needs.change-detection.outputs.run-cd)
-    uses: cda-tum/mqt-workflows/.github/workflows/reusable-python-packaging.yml@v1.4
+    uses: cda-tum/mqt-workflows/.github/workflows/reusable-python-packaging.yml@v1.5
 
   required-checks-pass: # This job does nothing and is only used for branch protection
     name: 🚦 Check
diff --git a/.github/workflows/update-mqt-core.yml b/.github/workflows/update-mqt-core.yml
index 28ad5487..2ca8dbec 100644
--- a/.github/workflows/update-mqt-core.yml
+++ b/.github/workflows/update-mqt-core.yml
@@ -21,6 +21,6 @@ concurrency:
 jobs:
   update-mqt-core:
     name: ⬆️ Update MQT Core
-    uses: cda-tum/mqt-workflows/.github/workflows/reusable-mqt-core-update.yml@v1.4
+    uses: cda-tum/mqt-workflows/.github/workflows/reusable-mqt-core-update.yml@v1.5
     with:
       update-to-head: ${{ github.event.inputs.update-to-head == 'true' }}
diff --git a/pyproject.toml b/pyproject.toml
index ca553c1e..0f04f0ff 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -288,7 +288,7 @@ archs = "auto64"
 test-command = "python -c \"from mqt import qcec\""
 test-skip = ["cp313*"] # skip testing on Python 3.13 until our dependencies are ready
 build-frontend = "build[uv]"
-free-threaded-support = true
+enable = ["cpython-freethreading"]
 manylinux-x86_64-image = "manylinux_2_28"
 manylinux-aarch64-image = "manylinux_2_28"
 manylinux-ppc64le-image = "manylinux_2_28"