diff --git a/action.yml b/action.yml
index e5f00ea..66c6a50 100644
--- a/action.yml
+++ b/action.yml
@@ -93,7 +93,7 @@ runs:
         wget -O /dev/null \
           --method PUT \
           --body-file "$MYUPLOAD" \
-          --header "Authorization: Bearer $ACTIONS_RUNTIME_TOKEN" \
+          --header "x-ms-blob-content-type: zip" \
           "$SIGNED_UPLOAD_URL&comp=block"
 
         # Finalize the artifact