diff --git a/.woodpecker.yml b/.woodpecker.yml
index 6c009d4..d288a5f 100644
--- a/.woodpecker.yml
+++ b/.woodpecker.yml
@@ -65,7 +65,6 @@ steps:
         from_secret: gitea_token
       CI_COMMIT_BRANCH: ${CI_COMMIT_BRANCH}
       CI_COMMIT_TAG: ${CI_COMMIT_TAG}
-      CI_PIPELINE_NUMBER: ${CI_PIPELINE_NUMBER}
     commands:
       - |
         uv sync --all-extras --frozen
@@ -76,7 +75,8 @@ steps:
           VERSION="$$BASE_VERSION"
           echo "Release build: $$VERSION"
         elif [ "$$CI_COMMIT_BRANCH" = "develop" ]; then
-          VERSION="$${BASE_VERSION}.dev$${CI_PIPELINE_NUMBER}"
+          TIMESTAMP=$$(date -u +%Y%m%d%H%M%S)
+          VERSION="$${BASE_VERSION}.dev$${TIMESTAMP}"
           echo "Dev build: $$VERSION"
           sed -i "s/version = \"$$BASE_VERSION\"/version = \"$$VERSION\"/" pyproject.toml
         fi