diff --git a/devtools/conda-envs/test_env.yaml b/devtools/conda-envs/test_env.yaml
index fb884f7..9d40c48 100644
--- a/devtools/conda-envs/test_env.yaml
+++ b/devtools/conda-envs/test_env.yaml
@@ -12,7 +12,8 @@ dependencies:
   - seaborn
   - jupyter
   - jupyterlab>=3
-  - ipywidgets>=7.5
+  # https://github.com/wolberlab/dynophores/issues/59
+  - ipywidgets<8
   - ipympl
   - nglview>=3
   - rdkit
@@ -37,4 +38,4 @@ dependencies:
     - flake8-nb
 
 ## For Jupyter lab extensions, run:
-# jupyter labextension install @jupyter-widgets/jupyterlab-manager nglview-js-widgets @ijmbarr/jupyterlab_spellchecker @jupyter-widgets/html-manager
\ No newline at end of file
+# jupyter labextension install @jupyter-widgets/jupyterlab-manager nglview-js-widgets @ijmbarr/jupyterlab_spellchecker @jupyter-widgets/html-manager