diff --git a/cd.sh b/cd.sh
index 60e620a..60f3343 100644
--- a/cd.sh
+++ b/cd.sh
@@ -66,6 +66,7 @@ cd_set_environment_variables () {
             esac
             CD_CA_ROOT="/etc/pki/ca-trust/source/anchors"
             CD_CMD_CLEAN="dnf clean all"
+            CD_CMD_UPGRADE="dnf upgrade --assumeyes"
             CD_PYTHON_COMMAND="python3.11"
             CD_PYTHON_PACKAGE="python3.11"
             CD_PYTHON_PACKAGES="/usr/lib64/python3.11/site-packages"
@@ -79,6 +80,7 @@ cd_set_environment_variables () {
             esac
             CD_CA_ROOT="/usr/local/share/ca-certificates"
             CD_CMD_CLEAN="apt-get clean"
+            CD_CMD_UPGRADE="apt-get upgrade --assume-yes"
             CD_PYTHON_COMMAND="python3"
             CD_PYTHON_PACKAGE="python3"
             CD_PYTHON_PACKAGES="/usr/lib/python3/dist-packages"
@@ -250,16 +252,13 @@ cd_set_https_verification_on () {
     fi
 }
 
+# agnostic steps
+
 cd_upgrade_packages () {
     cd_step "Upgrade packages"
-    case "${CD_OS_ID}" in
-        "${CD_OS_ALMA}") dnf upgrade --assumeyes || exit ;;
-        "${CD_OS_DEBIAN}") apt-get upgrade --assume-yes || exit ;;
-    esac
+    ${CD_CMD_UPGRADE} || exit
 }
 
-# agnostic steps
-
 cd_install_git () {
     cd_step "Install Git"
     cd_install_package "${CD_GIT_PACKAGE}"