diff --git a/sample-book.pdf b/sample-book.pdf
index f651cf4..b72a784 100644
Binary files a/sample-book.pdf and b/sample-book.pdf differ
diff --git a/sample-handout.pdf b/sample-handout.pdf
index 063d2cf..803d7c7 100644
Binary files a/sample-handout.pdf and b/sample-handout.pdf differ
diff --git a/tufte-common.sty b/tufte-common.sty
index 5932f55..9ff7a02 100644
--- a/tufte-common.sty
+++ b/tufte-common.sty
@@ -155,6 +155,7 @@
 
 \hypersetup{%
   pdfborder = {0 0 0},
+  bookmarksdepth = section,
 }
 
 %%