diff --git a/pyproject.toml b/pyproject.toml
index fb78d892..b7cc3e79 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,7 +38,7 @@ dependencies = [
 dynamic = ["version"]
 
 [project.optional-dependencies]
-all = ["ipympl>0.8.4", "pythreejs>=2.4.1", "mpltoolbox>=24.6.0", "ipywidgets>=8.1.0", "graphviz>=0.20.3"]
+all = ["anywidget>=0.9.0", "ipympl>0.8.4", "pythreejs>=2.4.1", "mpltoolbox>=24.6.0", "ipywidgets>=8.1.0", "graphviz>=0.20.3"]
 test = [
     "graphviz>=0.20.3",
     "h5py>=3.12",