diff --git a/pyproject.toml b/pyproject.toml
index 606a2e2..1f822cf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -66,6 +66,8 @@ docs = [
     "myst-parser~=1.0.0",
     "sphinx-book-theme~=1.0.1",
     'sphinxcontrib-details-directive~=0.1.0',
+    "nbsphinx",
+    "sphinx-gallery"
 ]
 
 [project.entry-points."aiida.data"]