diff --git a/Dockerfile-builder.template b/Dockerfile-builder.template
index 531b3be..c597e64 100644
--- a/Dockerfile-builder.template
+++ b/Dockerfile-builder.template
@@ -1,5 +1,5 @@
 {{ if env.variant == "musl" then ( -}}
-FROM alpine:3.17
+FROM alpine:3.18
 
 RUN set -eux; \
 	apk add --no-cache \
diff --git a/latest-1/musl/Dockerfile.builder b/latest-1/musl/Dockerfile.builder
index fa42410..ef795da 100644
--- a/latest-1/musl/Dockerfile.builder
+++ b/latest-1/musl/Dockerfile.builder
@@ -4,7 +4,7 @@
 # PLEASE DO NOT EDIT IT DIRECTLY.
 #
 
-FROM alpine:3.17
+FROM alpine:3.18
 
 RUN set -eux; \
 	apk add --no-cache \
diff --git a/latest/musl/Dockerfile.builder b/latest/musl/Dockerfile.builder
index 142b111..12700b3 100644
--- a/latest/musl/Dockerfile.builder
+++ b/latest/musl/Dockerfile.builder
@@ -4,7 +4,7 @@
 # PLEASE DO NOT EDIT IT DIRECTLY.
 #
 
-FROM alpine:3.17
+FROM alpine:3.18
 
 RUN set -eux; \
 	apk add --no-cache \