diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 241a0d0e..7e7b2d10 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -80,10 +80,14 @@ jobs:
           --set security.tls.autoGenerated=true
       - name: Check out code
         uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+          fetch-tags: true
       - name: Update version number
-        if: startsWith(github.ref, 'refs/tags/')
         run: | 
-          sed -i -e "s/0.0.0/${GITHUB_REF##*/}/" pyproject.toml
+          # always replaces the version with the latest tag
+          # both for testing and version release
+          sed -i -e "s/0.0.0/$(git describe --tags --abbrev=0 | sed 's/^v//')/" pyproject.toml
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
diff --git a/src/krkn_lib/tests/test_krkn_kubernetes.py b/src/krkn_lib/tests/test_krkn_kubernetes.py
index ee0009f1..89e716a3 100644
--- a/src/krkn_lib/tests/test_krkn_kubernetes.py
+++ b/src/krkn_lib/tests/test_krkn_kubernetes.py
@@ -1409,7 +1409,7 @@ def test_deploy_syn_flood(self):
             first=end - start,
             second=test_duration,
             places=None,
-            delta=1.7,
+            delta=2,
         )
 
     def test_select_services_by_label(self):