diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 2739f9c..779c9b3 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -80,10 +80,12 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - uses: abatilo/actions-poetry@v2
     - name: Install dependencies
-      run: poetry install
+      run: |
+        poetry install
+        apt-get update && apt-get install -y yq
     - run: poetry config repositories.testpypi https://test.pypi.org/legacy/
     - name: Substitute dynamic version
-      run: sed -ir 's/version *= *.([0-9.]+)./version = "\1-123"/' pyproject.toml
+      run: tomlq -i --arg now $(date +%s) '.tool.poetry.version += "-" + $now' pyproject.toml
     - name: Publish package
       run: poetry publish -r testpypi --build
       env: