diff --git a/Dockerfile b/Dockerfile
index 62871d3..0f67d5c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM openresty/openresty:1.21.4.1-buster@sha256:9157ab05009bd34d17974aa6430aa484664d267797ca5181b94eee0d0bbff632
+FROM openresty/openresty:1.21.4.1-buster@sha256:4ed02177eb4968dbc8fc4a31c3b8d6870a3be19b41c5e398a23b018ca3a4e939
 
 COPY nginx.conf.template /
 COPY entrypoint.sh /