diff --git a/ch05/photolog/requirements.txt b/ch05/photolog/requirements.txt
index 37f6f05..67b293b 100644
--- a/ch05/photolog/requirements.txt
+++ b/ch05/photolog/requirements.txt
@@ -9,7 +9,7 @@ idna==3.2
 itsdangerous==2.0.1
 Jinja2==2.11.3
 MarkupSafe==2.0.1
-oauthlib==3.1.1
+oauthlib==3.2.1
 Pillow==8.3.1
 redis==3.5.3
 requests==2.26.0