diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 5346b11..e6977b0 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -32,17 +32,10 @@ jobs:
           python-version: "3.11"
       - name: Update pyproject.toml
         run:
-          prefix="v"
-          echo "prefix=$prefix"
-          string="v1.3.1"
-          echo "string=$string"
-          versionname=${string#"$prefix"}
-          echo "versionname=$versionname"
-          oldpyprojectversion="version = \"0.0.0\""
-          echo "oldpyprojectversion=$oldpyprojectversion"
-          pyprojectversion="version = \"$versionname\""
-          echo "pyprojectversion=$pyprojectversion"
-          sed -i "s@$oldpyprojectversion@$pyprojectversion@g" pyproject.toml
+          OLD_VERSION=$(grep ^version pyproject.toml | cut -d '"' -f 2)
+          OLD_VERSION="\"$OLD_VERSION\""
+          NEW_VERSION="\"$GITHUB_REF_NAME\""
+          sed -i "s+version = $OLD_VERSION+version = $NEW_VERSION+g" pyproject.toml
       - name: Setup Poetry
         uses: abatilo/actions-poetry@v3
       - name: Install dependencies