diff --git a/install.sh b/install.sh
index c48e4ef5..3219205c 100755
--- a/install.sh
+++ b/install.sh
@@ -368,7 +368,9 @@ do_install() {
 			installation.
 
 			If you installed the current Docker package using this script and are using it
-			again to update Docker, you can safely ignore this message.
+			again to update Docker, you can ignore this message, but be aware that the
+			script resets any custom changes in the deb and rpm repo configuration
+			files to match the parameters passed to the script.
 
 			You may press Ctrl+C now to abort this script.
 		EOF
@@ -559,7 +561,7 @@ do_install() {
 				fi
 				if command_exists dnf5; then
 					$sh_c "dnf -y -q --setopt=install_weak_deps=False install dnf-plugins-core"
-					$sh_c "dnf5 config-manager addrepo --save-filename=docker-ce.repo --from-repofile='$repo_file_url'"
+					$sh_c "dnf5 config-manager addrepo --overwrite --save-filename=docker-ce.repo --from-repofile='$repo_file_url'"
 
 					if [ "$CHANNEL" != "stable" ]; then
 						$sh_c "dnf5 config-manager setopt \"docker-ce-*.enabled=0\""
@@ -568,6 +570,7 @@ do_install() {
 					$sh_c "dnf makecache"
 				elif command_exists dnf; then
 					$sh_c "dnf -y -q --setopt=install_weak_deps=False install dnf-plugins-core"
+					$sh_c "rm -f /etc/yum.repos.d/docker-ce.repo  /etc/yum.repos.d/docker-ce-staging.repo"
 					$sh_c "dnf config-manager --add-repo $repo_file_url"
 
 					if [ "$CHANNEL" != "stable" ]; then
@@ -577,6 +580,7 @@ do_install() {
 					$sh_c "dnf makecache"
 				else
 					$sh_c "yum -y -q install yum-utils"
+					$sh_c "rm -f /etc/yum.repos.d/docker-ce.repo  /etc/yum.repos.d/docker-ce-staging.repo"
 					$sh_c "yum-config-manager --add-repo $repo_file_url"
 
 					if [ "$CHANNEL" != "stable" ]; then
@@ -659,18 +663,23 @@ do_install() {
 					set -x
 				fi
 				$sh_c "zypper install -y $pre_reqs"
+				$sh_c "rm -f /etc/zypp/repos.d/docker-ce-*.repo"
 				$sh_c "zypper addrepo $repo_file_url"
-				if ! is_dry_run; then
-						cat >&2 <<-'EOF'
-						WARNING!!
-						openSUSE repository (https://download.opensuse.org/repositories/security:/SELinux) will be enabled now.
-						Do you wish to continue?
-						You may press Ctrl+C now to abort this script.
+
+				opensuse_factory_url="https://download.opensuse.org/repositories/security:/SELinux/openSUSE_Factory/"
+				if ! zypper lr -d | grep -q "${opensuse_factory_url}"; then
+					opensuse_repo="${opensuse_factory_url}security:SELinux.repo"
+					if ! is_dry_run; then
+						cat >&2 <<- EOF
+							WARNING!!
+							openSUSE repository ($opensuse_repo) will be enabled now.
+							Do you wish to continue?
+							You may press Ctrl+C now to abort this script.
 						EOF
-						( set -x; sleep 30 )
+						( set -x; sleep 20 )
+					fi
+					$sh_c "zypper addrepo $opensuse_repo"
 				fi
-				opensuse_repo="https://download.opensuse.org/repositories/security:/SELinux/openSUSE_Factory/security:SELinux.repo"
-				$sh_c "zypper addrepo $opensuse_repo"
 				$sh_c "zypper --gpg-auto-import-keys refresh"
 				$sh_c "zypper lr -d"
 			)