diff --git a/bookshelf/requirements.txt b/bookshelf/requirements.txt
index 27d3d4fe..e2badb7f 100644
--- a/bookshelf/requirements.txt
+++ b/bookshelf/requirements.txt
@@ -3,5 +3,5 @@ google-cloud-firestore==2.11.1
 google-cloud-storage==2.9.0
 google-cloud-error-reporting==1.9.1
 google-cloud-logging==3.5.0
-gunicorn==20.1.0
+gunicorn==23.0.0
 six==1.16.0
diff --git a/gce/requirements.txt b/gce/requirements.txt
index b655465f..b07d3413 100644
--- a/gce/requirements.txt
+++ b/gce/requirements.txt
@@ -1,3 +1,3 @@
 flask==2.2.5
 honcho==1.1.0
-gunicorn==20.1.0
+gunicorn==23.0.0