diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f3bd3561e3..68d28c1942 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -53,10 +53,10 @@ variables:
   #
   # This is done by running `ci-fairy generate-template` and possibly bumping
   # ".default_tag".
-  FEDORA_TAG:  '2023-01-18.0-296fbfd97862'
-  UBUNTU_TAG:  '2023-01-18.0-08fb4e6eb861'
-  DEBIAN_TAG:  '2023-01-18.0-08fb4e6eb861'
-  CENTOS_TAG:  '2023-01-18.0-296fbfd97862'
+  FEDORA_TAG:  '2023-01-18.0-82ad875db2dc'
+  UBUNTU_TAG:  '2023-01-18.0-1218be1cbc9d'
+  DEBIAN_TAG:  '2023-01-18.0-1218be1cbc9d'
+  CENTOS_TAG:  '2023-01-18.0-82ad875db2dc'
   ALPINE_TAG:  '2023-01-18.0-14c807942fa4'
 
   FEDORA_EXEC: 'bash .gitlab-ci/fedora-install.sh'
diff --git a/contrib/debian/REQUIRED_PACKAGES b/contrib/debian/REQUIRED_PACKAGES
index 34e591ddc7..4e8bb8c603 100755
--- a/contrib/debian/REQUIRED_PACKAGES
+++ b/contrib/debian/REQUIRED_PACKAGES
@@ -12,11 +12,14 @@ set -xe
 # Not all of these packages are strictly speaking necessary.
 # This is a generous list of related packages.
 
+SUDO=
+[ "$EUID" -eq 0 ] || SUDO=sudo
+
 install() {
     if [ "$NM_INSTALL" != "" ]; then
         $NM_INSTALL "$@"
     else
-        sudo apt-get install -y "$@"
+        $SUDO apt-get install -y "$@"
     fi
 }
 
diff --git a/contrib/fedora/REQUIRED_PACKAGES b/contrib/fedora/REQUIRED_PACKAGES
index c77f4ccdc1..644e518b1b 100755
--- a/contrib/fedora/REQUIRED_PACKAGES
+++ b/contrib/fedora/REQUIRED_PACKAGES
@@ -14,11 +14,14 @@ set -xe
 
 DNF="$(command -v dnf &>/dev/null && echo dnf || echo yum)"
 
+SUDO=
+[ "$EUID" -eq 0 ] || SUDO=sudo
+
 install() {
     if [ "$NM_INSTALL" != "" ]; then
         $NM_INSTALL "$@"
     else
-        sudo "$DNF" install -y "$@"
+        $SUDO "$DNF" install -y "$@"
     fi
 }