diff --git a/Dockerfile b/Dockerfile
index b2434e5..15fcce3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM nginx:1.27.2 AS opensafely-proxy
+FROM nginx:1.27.3 AS opensafely-proxy
 # Default orgs, must be pipe separated as are fed into a regex match
 # Can be overridden via run time env var
 ENV ORGS=opensafely|opensafely-core|opensafely-actions