diff --git a/Dockerfile b/Dockerfile
index 17a2273..62871d3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM openresty/openresty:1.21.4.1-buster@sha256:281731a223e1c11b99c8eef0169e78878076674e0586bfb6634571b9cff3e253
+FROM openresty/openresty:1.21.4.1-buster@sha256:9157ab05009bd34d17974aa6430aa484664d267797ca5181b94eee0d0bbff632
 
 COPY nginx.conf.template /
 COPY entrypoint.sh /