diff --git a/Dockerfile b/Dockerfile
index 34caff8..503d23a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM openresty/openresty:1.19.3.2-buster@sha256:6012c7852af114ef7a7544723417e5a76f88fe9fc09a111cac37719f471f9328
+FROM openresty/openresty:1.19.9.1-buster@sha256:f441b6077669f142b62f58d61ede5c46f7572a7d6a9cb27ec6c54b4055ca5b1f
 
 COPY nginx.conf.template /
 COPY entrypoint.sh /