diff --git a/sleep/Dockerfile b/sleep/Dockerfile
index ac97f195934eda9d807b34b758c65291badab2fe..8ca8db2fa93460e3f233467cb108183edf8fcad3 100644
--- a/sleep/Dockerfile
+++ b/sleep/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.18
+FROM alpine:3.20
 COPY --chown=root:root entrypoint /usr/local/bin/entrypoint
 USER nobody
 ENTRYPOINT ["entrypoint"]