diff --git a/build/Dockerfile.initcontainer b/build/Dockerfile.initcontainer
index bee5b92f..c9208c9a 100644
--- a/build/Dockerfile.initcontainer
+++ b/build/Dockerfile.initcontainer
@@ -1,4 +1,4 @@
-FROM alpine:3.15
+FROM alpine:3.18
 RUN apk add --update \
     bash \
     bc \