diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 653135e..96a4675 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,7 +19,37 @@ jobs:
     needs: lint
     steps:
       - uses: actions/checkout@v4
+      - name: Check for version change in pyproject.toml
+        id: check_version
+        uses: actions/github-script@v6
+        with:
+          script: |
+            const payload = context.payload;
+            const headCommit = payload.commits[payload.commits.length - 1];
+            const changedFiles = headCommit.modified.concat(headCommit.added).concat(headCommit.removed);
+            const isVersionChanged = changedFiles.includes('pyproject.toml');
+
+            if (!isVersionChanged) {
+              console.log("No change in pyproject.toml");
+              return false;
+            }
+
+            const fs = require('fs');
+            const content = fs.readFileSync('./pyproject.toml', 'utf8');
+            const versionRegex = /version = "(\S+)"/;
+            const match = versionRegex.exec(content);
+
+            if (match) {
+              core.setOutput('new_version', match[1]);
+              console.log(`Version changed to ${match[1]}`);
+              return true;
+            } else {
+              console.log("Version line not found or unchanged");
+              return false;
+            }
+          result-encoding: string
       - name: Publish Package
+        if: steps.check_version.outputs.new_version
         uses: JRubics/poetry-publish@v2.0
         with:
           pypi_token: ${{ secrets.PYPI_API_TOKEN }}