diff --git a/pyproject.toml b/pyproject.toml
index f27f1027..cfb415aa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,7 +49,7 @@ docs = [
 femwell = ["femwell~=0.1.11", "meshwell~=2.1.1"]
 gfviz = ["jinja2", "fastapi", "shapely", "natsort"]
 klayout = ["klayout", "pyvis<=0.3.1", "vlsir", "vlsirtools", "gitpython"]
-luminescent = ["luminescent>=0.2.12,<0.4.0", "sortedcontainers"]
+luminescent = ["luminescent>=0.2.12,<2.3.0", "sortedcontainers"]
 maintainer = ["mypy", "tbump", "towncrier"]
 meow = ["meow-sim>=0.14.1,<0.15", "sax>=0.15.6,<0.16.0", "tidy3d>=2.8.2,<2.9"]
 meshwell = ["shapely", "meshwell~=2.1.1"]