diff --git a/docs/requirements.txt b/docs/requirements.txt
index 3020b94..63f68e6 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,4 +1,4 @@
-sphinx-book-theme~=0.1
+sphinx-book-theme~=0.3
 numpydoc~=1.1
 sphinx-copybutton~=0.4
 sphinxcontrib-bibtex~=2.4