diff --git a/Dockerfile b/Dockerfile
index 037d906..8a3dd39 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.7
+FROM alpine:3.18.6
 RUN apk --update add postgresql-client && rm -rf /var/cache/apk/*
 COPY . /
 ENTRYPOINT ["./entrypoint.sh"]