diff --git a/Dockerfile-builder.template b/Dockerfile-builder.template
index 417192c..ef16bbc 100644
--- a/Dockerfile-builder.template
+++ b/Dockerfile-builder.template
@@ -1,5 +1,5 @@
 {{ if env.variant == "musl" then ( -}}
-FROM alpine:3.20
+FROM alpine:3.21
 
 RUN set -eux; \
 	apk add --no-cache \
diff --git a/latest-1/glibc/Dockerfile.builder b/latest-1/glibc/Dockerfile.builder
index a2bc604..eb473ba 100644
--- a/latest-1/glibc/Dockerfile.builder
+++ b/latest-1/glibc/Dockerfile.builder
@@ -157,7 +157,7 @@ RUN set -eux; \
 
 # install a few extra files from buildroot (/etc/passwd, etc)
 RUN set -eux; \
-	buildrootVersion='2024.08.2'; \
+	buildrootVersion='2024.11'; \
 	for file in \
 		system/device_table.txt \
 		system/skeleton/etc/group \
diff --git a/latest-1/musl/Dockerfile.builder b/latest-1/musl/Dockerfile.builder
index c019116..7309d42 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:3.20
+FROM alpine:3.21
 
 RUN set -eux; \
 	apk add --no-cache \
@@ -140,7 +140,7 @@ RUN set -eux; \
 
 # install a few extra files from buildroot (/etc/passwd, etc)
 RUN set -eux; \
-	buildrootVersion='2024.08.2'; \
+	buildrootVersion='2024.11'; \
 	for file in \
 		system/device_table.txt \
 		system/skeleton/etc/group \
diff --git a/latest-1/uclibc/Dockerfile.builder b/latest-1/uclibc/Dockerfile.builder
index ec86c5b..6881144 100644
--- a/latest-1/uclibc/Dockerfile.builder
+++ b/latest-1/uclibc/Dockerfile.builder
@@ -44,7 +44,7 @@ RUN mkdir -p ~/.gnupg && gpg --batch --keyserver keyserver.ubuntu.com --recv-key
 
 # https://buildroot.org/download.html
 # https://buildroot.org/downloads/?C=M;O=D
-ENV BUILDROOT_VERSION 2024.08.2
+ENV BUILDROOT_VERSION 2024.11
 
 RUN set -eux; \
 	tarball="buildroot-${BUILDROOT_VERSION}.tar.xz"; \
diff --git a/latest/glibc/Dockerfile.builder b/latest/glibc/Dockerfile.builder
index d8c909a..92671e3 100644
--- a/latest/glibc/Dockerfile.builder
+++ b/latest/glibc/Dockerfile.builder
@@ -158,7 +158,7 @@ RUN set -eux; \
 
 # install a few extra files from buildroot (/etc/passwd, etc)
 RUN set -eux; \
-	buildrootVersion='2024.08.2'; \
+	buildrootVersion='2024.11'; \
 	for file in \
 		system/device_table.txt \
 		system/skeleton/etc/group \
diff --git a/latest/musl/Dockerfile.builder b/latest/musl/Dockerfile.builder
index 15d9224..77b69c0 100644
--- a/latest/musl/Dockerfile.builder
+++ b/latest/musl/Dockerfile.builder
@@ -4,7 +4,7 @@
 # PLEASE DO NOT EDIT IT DIRECTLY.
 #
 
-FROM alpine:3.20
+FROM alpine:3.21
 
 RUN set -eux; \
 	apk add --no-cache \
@@ -141,7 +141,7 @@ RUN set -eux; \
 
 # install a few extra files from buildroot (/etc/passwd, etc)
 RUN set -eux; \
-	buildrootVersion='2024.08.2'; \
+	buildrootVersion='2024.11'; \
 	for file in \
 		system/device_table.txt \
 		system/skeleton/etc/group \
diff --git a/latest/uclibc/Dockerfile.builder b/latest/uclibc/Dockerfile.builder
index 50f1deb..a406ae9 100644
--- a/latest/uclibc/Dockerfile.builder
+++ b/latest/uclibc/Dockerfile.builder
@@ -44,7 +44,7 @@ RUN mkdir -p ~/.gnupg && gpg --batch --keyserver keyserver.ubuntu.com --recv-key
 
 # https://buildroot.org/download.html
 # https://buildroot.org/downloads/?C=M;O=D
-ENV BUILDROOT_VERSION 2024.08.2
+ENV BUILDROOT_VERSION 2024.11
 
 RUN set -eux; \
 	tarball="buildroot-${BUILDROOT_VERSION}.tar.xz"; \
diff --git a/versions.json b/versions.json
index ee75374..797063d 100644
--- a/versions.json
+++ b/versions.json
@@ -1,7 +1,7 @@
 {
   "latest": {
     "buildroot": {
-      "version": "2024.08.2"
+      "version": "2024.11"
     },
     "date": "27 September 2024",
     "sha256": "3311dff32e746499f4df0d5df04d7eb396382d7e108bb9250e7b519b837043a4",
@@ -15,7 +15,7 @@
   },
   "latest-1": {
     "buildroot": {
-      "version": "2024.08.2"
+      "version": "2024.11"
     },
     "date": "19 May 2023",
     "sha256": "b8cc24c9574d809e7279c3be349795c5d5ceb6fdf19ca709f80cde50e47de314",