diff --git a/pyproject.toml b/pyproject.toml
index c5ba484f..e0a1096c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,7 +46,7 @@ docs = [
   "bokeh",
   "scikit-learn"
 ]
-femwell = ["femwell~=0.1.11", "meshwell~=1.0.7"]
+femwell = ["femwell~=0.1.11", "meshwell>=1.0.7,<2.1.0"]
 gfviz = ["jinja2", "fastapi", "shapely", "natsort"]
 gmsh = [
   "gmsh==4.14.0",
@@ -57,7 +57,7 @@ gmsh = [
   "pyvista<=0.43.8",
   "trimesh",
   "shapely",
-  "meshwell~=1.0.7"
+  "meshwell>=1.0.7,<2.1.0"
 ]
 klayout = ["klayout", "pyvis<=0.3.1", "vlsir", "vlsirtools"]
 luminescent = ["luminescent>=0.2.12,<0.4.0", "sortedcontainers"]