diff --git a/.github/workflows/publish_package.yml b/.github/workflows/publish_package.yml
index 03ddab2..9602128 100644
--- a/.github/workflows/publish_package.yml
+++ b/.github/workflows/publish_package.yml
@@ -27,14 +27,8 @@ jobs:
 
       - name: Update version in pyproject.toml
         run: |
-          python -m pip install tomlkit
-          python -c "\
-          import tomlkit;\
-          with open('pyproject.toml', 'r') as file:\
-              pyproj = tomlkit.load(file);\
-          pyproj['project']['version'] = '${{ env.VERSION }}';\
-          with open('pyproject.toml', 'w') as file:\
-              tomlkit.dump(pyproj, file)"
+          sed -i "s/version = \".*\"/version = \"${{ env.VERSION }}\"/" pyproject.toml
+
               
       - name: Build distribution
         run: python -m build --sdist --wheel --outdir dist/