diff --git a/requirements.api.txt b/requirements.api.txt
index 978d6ac7..47074bea 100644
--- a/requirements.api.txt
+++ b/requirements.api.txt
@@ -1,6 +1,6 @@
 # These are dependencies required by the production Web API
 # gunivorn is only available on *nix, but it's only required for production deployments
-gunicorn>=22.0.0
+gunicorn>=23.0.0
 # uvicorn works on all platforms and is required for both dev and prod deployments
 uvicorn>=0.30.1
 # For deployment on Heroku, we want the latest g2p off GitHub