diff --git a/index.html b/index.html
index 47e0a91..cea1d98 100644
--- a/index.html
+++ b/index.html
@@ -3283,7 +3283,7 @@ <h2>Session information</h2>
  collate  C.UTF-8
  ctype    C.UTF-8
  tz       UTC
- date     2023-10-08
+ date     2023-10-09
  pandoc   3.1.8 @ /usr/bin/ (via rmarkdown)
 
 ─ Packages ───────────────────────────────────────────────────────────────────
diff --git a/slides.html b/slides.html
index 47e0a91..cea1d98 100644
--- a/slides.html
+++ b/slides.html
@@ -3283,7 +3283,7 @@ <h2>Session information</h2>
  collate  C.UTF-8
  ctype    C.UTF-8
  tz       UTC
- date     2023-10-08
+ date     2023-10-09
  pandoc   3.1.8 @ /usr/bin/ (via rmarkdown)
 
 ─ Packages ───────────────────────────────────────────────────────────────────
diff --git a/slides/slides.pdf b/slides/slides.pdf
index b8a05ba..094576d 100644
Binary files a/slides/slides.pdf and b/slides/slides.pdf differ