diff --git a/Dockerfile-curl.template b/Dockerfile-curl.template
index 6163c6da..986aa99a 100644
--- a/Dockerfile-curl.template
+++ b/Dockerfile-curl.template
@@ -13,7 +13,6 @@ RUN set -eux; \
 	# https://packages.debian.org/sq
 	"bullseye", # 0.24
 	# https://packages.ubuntu.com/sq
-	"mantic",   # no sq
 	"jammy",    # 0.25
 	"focal",    # no sq
 	empty # trailing comma
diff --git a/shared.jq b/shared.jq
index 825c00b1..1a82889a 100644
--- a/shared.jq
+++ b/shared.jq
@@ -10,7 +10,6 @@ def apt_get_dist_clean:
 
 		# https://launchpad.net/ubuntu/+source/apt
 		# https://packages.ubuntu.com/apt
-		"mantic",
 		"jammy",
 		"focal",
 
diff --git a/ubuntu/mantic/Dockerfile b/ubuntu/mantic/Dockerfile
deleted file mode 100644
index da7dcefb..00000000
--- a/ubuntu/mantic/Dockerfile
+++ /dev/null
@@ -1,54 +0,0 @@
-#
-# NOTE: THIS DOCKERFILE IS GENERATED VIA "apply-templates.sh"
-#
-# PLEASE DO NOT EDIT IT DIRECTLY.
-#
-
-FROM buildpack-deps:mantic-scm
-
-RUN set -ex; \
-	apt-get update; \
-	apt-get install -y --no-install-recommends \
-		autoconf \
-		automake \
-		bzip2 \
-		default-libmysqlclient-dev \
-		dpkg-dev \
-		file \
-		g++ \
-		gcc \
-		imagemagick \
-		libbz2-dev \
-		libc6-dev \
-		libcurl4-openssl-dev \
-		libdb-dev \
-		libevent-dev \
-		libffi-dev \
-		libgdbm-dev \
-		libglib2.0-dev \
-		libgmp-dev \
-		libjpeg-dev \
-		libkrb5-dev \
-		liblzma-dev \
-		libmagickcore-dev \
-		libmagickwand-dev \
-		libmaxminddb-dev \
-		libncurses5-dev \
-		libncursesw5-dev \
-		libpng-dev \
-		libpq-dev \
-		libreadline-dev \
-		libsqlite3-dev \
-		libssl-dev \
-		libtool \
-		libwebp-dev \
-		libxml2-dev \
-		libxslt-dev \
-		libyaml-dev \
-		make \
-		patch \
-		unzip \
-		xz-utils \
-		zlib1g-dev \
-	; \
-	rm -rf /var/lib/apt/lists/*
diff --git a/ubuntu/mantic/curl/Dockerfile b/ubuntu/mantic/curl/Dockerfile
deleted file mode 100644
index 6b75df32..00000000
--- a/ubuntu/mantic/curl/Dockerfile
+++ /dev/null
@@ -1,20 +0,0 @@
-#
-# NOTE: THIS DOCKERFILE IS GENERATED VIA "apply-templates.sh"
-#
-# PLEASE DO NOT EDIT IT DIRECTLY.
-#
-
-FROM ubuntu:mantic
-
-RUN set -eux; \
-	apt-get update; \
-	apt-get install -y --no-install-recommends \
-		ca-certificates \
-		curl \
-		gnupg \
-		netbase \
-		wget \
-# https://bugs.debian.org/929417
-		tzdata \
-	; \
-	rm -rf /var/lib/apt/lists/*
diff --git a/ubuntu/mantic/scm/Dockerfile b/ubuntu/mantic/scm/Dockerfile
deleted file mode 100644
index 24d7a22e..00000000
--- a/ubuntu/mantic/scm/Dockerfile
+++ /dev/null
@@ -1,20 +0,0 @@
-#
-# NOTE: THIS DOCKERFILE IS GENERATED VIA "apply-templates.sh"
-#
-# PLEASE DO NOT EDIT IT DIRECTLY.
-#
-
-FROM buildpack-deps:mantic-curl
-
-RUN set -eux; \
-	apt-get update; \
-	apt-get install -y --no-install-recommends \
-		git \
-		mercurial \
-		openssh-client \
-		subversion \
-		\
-# procps is very common in build systems, and is a reasonably small package
-		procps \
-	; \
-	rm -rf /var/lib/apt/lists/*
diff --git a/versions.json b/versions.json
index f5e75851..ec6ce352 100644
--- a/versions.json
+++ b/versions.json
@@ -47,14 +47,6 @@
       ""
     ]
   },
-  "ubuntu/mantic": {
-    "suite": "23.10",
-    "variants": [
-      "curl",
-      "scm",
-      ""
-    ]
-  },
   "ubuntu/noble": {
     "suite": "24.04",
     "variants": [