diff --git a/.github/workflows/create-packages.yml b/.github/workflows/create-packages.yml
index cfd90dee1..629dbfb9e 100644
--- a/.github/workflows/create-packages.yml
+++ b/.github/workflows/create-packages.yml
@@ -22,7 +22,6 @@ on:
           "ubuntu-jammy",
           "ubuntu-noble",
           "ubuntu-oracular",
-          "ubuntu-lunar",
           "almalinux-8",
           "almalinux-9",
           "fedora-39",
diff --git a/.github/workflows/dbld-images.yml b/.github/workflows/dbld-images.yml
index 044f926c7..29660ed94 100644
--- a/.github/workflows/dbld-images.yml
+++ b/.github/workflows/dbld-images.yml
@@ -44,7 +44,6 @@ jobs:
           - ubuntu-jammy
           - ubuntu-noble
           - ubuntu-oracular
-          - ubuntu-lunar
           - devshell
           - tarball
       fail-fast: false
diff --git a/.github/workflows/test-apt-packages.yml b/.github/workflows/test-apt-packages.yml
index ee5c5502e..258c87eb6 100644
--- a/.github/workflows/test-apt-packages.yml
+++ b/.github/workflows/test-apt-packages.yml
@@ -23,7 +23,6 @@ jobs:
           - "ubuntu:focal"
           - "ubuntu:jammy"
           - "ubuntu:noble"
-          - "ubuntu:lunar"
           - "ubuntu:oracular"
         upgrade-from:
           - "debian-official"
diff --git a/.github/workflows/upload-packages.yml b/.github/workflows/upload-packages.yml
index 240e0a9a9..aa3f781ca 100644
--- a/.github/workflows/upload-packages.yml
+++ b/.github/workflows/upload-packages.yml
@@ -20,7 +20,6 @@ on:
             {"type": "deb", "name": "ubuntu-jammy"},
             {"type": "deb", "name": "ubuntu-noble"},
             {"type": "deb", "name": "ubuntu-oracular"},
-            {"type": "deb", "name": "ubuntu-lunar"},
 
             {"type": "rpm", "name": "almalinux-8"},
             {"type": "rpm", "name": "almalinux-9"},
diff --git a/README.md b/README.md
index ac71d592b..9fc7921f7 100644
--- a/README.md
+++ b/README.md
@@ -141,7 +141,6 @@ The following x86-64 distros are supported:
 | Debian Testing  | debian-testing         |
 | Ubuntu 24.10    | ubuntu-oracular        |
 | Ubuntu 24.04    | ubuntu-noble           |
-| Ubuntu 23.04    | ubuntu-lunar           |
 | Ubuntu 22.04    | ubuntu-jammy           |
 | Ubuntu 20.04    | ubuntu-focal           |
 
diff --git a/dbld/Makefile.am b/dbld/Makefile.am
index a52be06dc..1b39a76fc 100644
--- a/dbld/Makefile.am
+++ b/dbld/Makefile.am
@@ -40,7 +40,6 @@ EXTRA_DIST += \
 	dbld/images/ubuntu-jammy.dockerfile \
 	dbld/images/ubuntu-noble.dockerfile \
 	dbld/images/ubuntu-oracular.dockerfile \
-	dbld/images/ubuntu-lunar.dockerfile \
 	dbld/images/tarball.dockerfile \
 	dbld/images/hooks/build \
 	dbld/images/README.md \
diff --git a/dbld/images/ubuntu-lunar.dockerfile b/dbld/images/ubuntu-lunar.dockerfile
deleted file mode 100644
index 09b21ad0b..000000000
--- a/dbld/images/ubuntu-lunar.dockerfile
+++ /dev/null
@@ -1,26 +0,0 @@
-FROM ubuntu:lunar
-LABEL maintainer="Laszlo Varady <laszlo.varady@balabit.com>, Andras Mitzki <andras.mitzki@balabit.com>, Laszlo Szemere <laszlo.szemere@balabit.com>, Balazs Scheidler <balazs.scheidler@oneidentity.com>"
-ENV OS_DISTRIBUTION=ubuntu
-ENV OS_DISTRIBUTION_CODE_NAME=lunar
-
-ARG ARG_IMAGE_PLATFORM
-ARG COMMIT
-ENV IMAGE_PLATFORM=${ARG_IMAGE_PLATFORM}
-LABEL COMMIT=${COMMIT}
-
-ENV DEBIAN_FRONTEND=noninteractive
-ENV DEBCONF_NONINTERACTIVE_SEEN=true
-ENV LANG=C.UTF-8
-
-COPY images/entrypoint.sh /
-COPY . /dbld/
-
-RUN /dbld/builddeps update_packages
-RUN /dbld/builddeps install_dbld_dependencies
-RUN /dbld/builddeps install_apt_packages
-RUN /dbld/builddeps install_debian_build_deps
-
-VOLUME /source
-VOLUME /build
-
-ENTRYPOINT ["/entrypoint.sh"]
diff --git a/dbld/rules b/dbld/rules
index 3d9f0128b..a39431df8 100755
--- a/dbld/rules
+++ b/dbld/rules
@@ -15,7 +15,6 @@ BUILDER_IMAGES=		\
 	ubuntu-jammy \
 	ubuntu-noble \
 	ubuntu-oracular \
-	ubuntu-lunar	\
 	tarball
 
 IMAGES=${BUILDER_IMAGES} devshell