diff --git a/.github/workflows/charts-build.yaml b/.github/workflows/charts-build.yaml
index b319751..c303756 100644
--- a/.github/workflows/charts-build.yaml
+++ b/.github/workflows/charts-build.yaml
@@ -62,7 +62,7 @@ jobs:
               chart=$(dirname $chartFile)
               name=$(basename chart)
 
-              sed -i 's/^\s*\(app\)\?\([Vv]ersion:\s*\).\+/\1\2"$VERSION"/' $chartFile
+              sed -i 's/^\(app\)\?\(\s*[Vv]ersion:\s*\).\+/\1\2"$VERSION"/' $chartFile
 
               cat $chartFile