diff --git a/.github/workflows/scripts/qemu-2-start.sh b/.github/workflows/scripts/qemu-2-start.sh
index 53a6ca98e..72f9f8c34 100755
--- a/.github/workflows/scripts/qemu-2-start.sh
+++ b/.github/workflows/scripts/qemu-2-start.sh
@@ -122,11 +122,6 @@ case "$OS" in
     MIRROR="http://opensuse-mirror-gce-us.susecloud.net"
     URL="$MIRROR/tumbleweed/appliances/openSUSE-MicroOS.x86_64-OpenStack-Cloud.qcow2"
     ;;
-  ubuntu20)
-    OSNAME="Ubuntu 20.04"
-    OSv="ubuntu20.04"
-    URL="$UBMIRROR/focal/current/focal-server-cloudimg-amd64.img"
-    ;;
   ubuntu22)
     OSNAME="Ubuntu 22.04"
     OSv="ubuntu22.04"
diff --git a/.github/workflows/scripts/qemu-3-deps-vm.sh b/.github/workflows/scripts/qemu-3-deps-vm.sh
index b10bd4da3..dd9232950 100755
--- a/.github/workflows/scripts/qemu-3-deps-vm.sh
+++ b/.github/workflows/scripts/qemu-3-deps-vm.sh
@@ -171,9 +171,7 @@ case "$1" in
     echo "##[group]Install Ubuntu specific"
     sudo apt-get install -yq linux-tools-common libtirpc-dev \
       linux-modules-extra-$(uname -r)
-    if [ "$1" != "ubuntu20" ]; then
-      sudo apt-get install -yq dh-sequence-dkms
-    fi
+    sudo apt-get install -yq dh-sequence-dkms
     echo "##[endgroup]"
     echo "##[group]Delete Ubuntu OpenZFS modules"
     for i in $(find /lib/modules -name zfs -type d); do sudo rm -rvf $i; done
diff --git a/.github/workflows/zfs-qemu.yml b/.github/workflows/zfs-qemu.yml
index eb4616220..216dae2d0 100644
--- a/.github/workflows/zfs-qemu.yml
+++ b/.github/workflows/zfs-qemu.yml
@@ -39,7 +39,7 @@ jobs:
       - name: Generate OS config and CI type
         id: os
         run: |
-          FULL_OS='["almalinux8", "almalinux9", "debian11", "debian12", "fedora40", "fedora41", "fedora42", "freebsd13-4r", "freebsd14-2s", "freebsd15-0c", "ubuntu20", "ubuntu22", "ubuntu24"]'
+          FULL_OS='["almalinux8", "almalinux9", "debian11", "debian12", "fedora40", "fedora41", "fedora42", "freebsd13-4r", "freebsd14-2s", "freebsd15-0c", "ubuntu22", "ubuntu24"]'
           QUICK_OS='["almalinux8", "almalinux9", "debian12", "fedora42", "freebsd14-2r", "ubuntu24"]'
           # determine CI type when running on PR
           ci_type="full"
@@ -82,7 +82,7 @@ jobs:
       fail-fast: false
       matrix:
         # rhl:     almalinux8, almalinux9, centos-stream9, fedora40, fedora41
-        # debian:  debian11, debian12, ubuntu20, ubuntu22, ubuntu24
+        # debian:  debian11, debian12, ubuntu22, ubuntu24
         # misc:    archlinux, tumbleweed
         # FreeBSD variants of 2024-12:
         # FreeBSD Release: freebsd13-4r, freebsd14-2r