diff --git a/requirements/docs.txt b/requirements/docs.txt
index 25f715a..6943670 100644
--- a/requirements/docs.txt
+++ b/requirements/docs.txt
@@ -1,5 +1,5 @@
 demesdraw==0.4.0
 jupyter-book==0.15.1
-piccolo_theme==0.17.0
+piccolo_theme==0.18.0
 sphinx_issues==3.0.1
 sphinxcontrib-programoutput==0.17