diff --git a/.ci_support/environment-docs.yml b/.ci_support/environment-docs.yml
index e742ec9..63d7de0 100644
--- a/.ci_support/environment-docs.yml
+++ b/.ci_support/environment-docs.yml
@@ -13,3 +13,4 @@ dependencies:
 - tqdm =4.66.2
 - pympipool =0.7.18
 - cloudpickle =3.0.0
+- jupyter-book =1.0.0