diff --git a/conda/environment.devenv.yml b/conda/environment.devenv.yml
index 4dcde49e35..9b71c679d8 100644
--- a/conda/environment.devenv.yml
+++ b/conda/environment.devenv.yml
@@ -70,6 +70,7 @@ dependencies:
 - gmsh
 - graphviz
 - hdf5
+- libcxx<16
 - matplotlib
 - ninja
 - numpy