diff --git a/jupyter_releaser/lib.py b/jupyter_releaser/lib.py
index 15b07c88..b717db10 100644
--- a/jupyter_releaser/lib.py
+++ b/jupyter_releaser/lib.py
@@ -450,7 +450,11 @@ def publish_assets(
                 util.run(f"{npm_cmd} {name}", cwd=dist_dir, quiet=True, quiet_error=True, echo=True)
             except CalledProcessError as e:
                 stderr = e.stderr
-                if "EPUBLISHCONFLICT" in stderr or "previously published versions" in stderr:
+                if (
+                    "E409" in stderr
+                    or "EPUBLISHCONFLICT" in stderr
+                    or "previously published versions" in stderr
+                ):
                     continue
                 util.log(stderr)
                 raise e