diff --git a/bookshelf/requirements.txt b/bookshelf/requirements.txt
index 12ec886d..f9da944b 100644
--- a/bookshelf/requirements.txt
+++ b/bookshelf/requirements.txt
@@ -1,4 +1,4 @@
-Flask==2.2.2
+Flask==2.3.2
 google-cloud-firestore==2.7.2
 google-cloud-storage==2.7.0
 google-cloud-error-reporting==1.6.3