diff --git a/.gitea/scripts/set_poetry_version.sh b/.gitea/scripts/set_poetry_version.sh
index adf3dfa..272e938 100755
--- a/.gitea/scripts/set_poetry_version.sh
+++ b/.gitea/scripts/set_poetry_version.sh
@@ -5,7 +5,7 @@ NIGHTLY_SUFFIX=""
 
 if [[ "$1" == "nightly" ]]; then
   # Beispiel: 20240511.1358 → 11. Mai, 13:58 Uhr
-  NIGHTLY_SUFFIX="+nightly.$(date +%Y%m%d.%H%M)"
+  NIGHTLY_SUFFIX=".dev$(date +%Y%m%d%H%M)"
 fi
 
 FULL_VERSION="${BASE_VERSION}${NIGHTLY_SUFFIX}"