diff --git a/build.sh b/build.sh
index 1c37bdb..bcc9cb5 100644
--- a/build.sh
+++ b/build.sh
@@ -1,3 +1,4 @@
+nix-shell -p python311Packages.mkdocs python311Packages.mkdocs-material
 mkdocs build -f ./mkdocs.yml -d docs_build
 git switch pages
 mv -f docs_build/* .