diff --git a/.gitea/workflows/release.yaml b/.gitea/workflows/release.yaml
index bc79c9c..0bfa3bf 100644
--- a/.gitea/workflows/release.yaml
+++ b/.gitea/workflows/release.yaml
@@ -29,7 +29,7 @@ jobs:
           GITEA_SERVER_URL: ${{ github.server_url }}
         run: |
           PACKAGE_VERSION=${GITHUB_REF#refs/tags/}
-          REPOSITORY_NAME=$(echo ${GITHUB_REPOSITORY} | cut -d '/' -f 2 | sed 's/-charts?//gm')
+          REPOSITORY_NAME=$(echo ${GITHUB_REPOSITORY} | cut -d '/' -f 2 | sed --regexp-extended 's/-charts?//gm')
           REPOSITORY_OWNER=$(echo ${GITHUB_REPOSITORY} | cut -d '/' -f 1)
 
           helm dependency build