diff --git a/features/sci/exec.config b/features/sci/exec.config
index 69033075..3135b21e 100755
--- a/features/sci/exec.config
+++ b/features/sci/exec.config
@@ -7,8 +7,13 @@ systemctl enable ssh
 # install custom packages
 # TODO : these all should go in the repo
 
+# all versions URL encoded
+EDK2_VERSION="20250503-5gl0%2Bbp1877"
+LIBVIRT_VERSION="11.3.0-28gl0%2Bbp1877"
+CLOUD_HYPERVISOR_VERSION="48.0-4gl0%2Bbp1877"
+
 mkdir /tmp/custompackages
-for p in https://github.com/gardenlinux/package-edk2-cloud-hypervisor-gl/releases/download/20250503-5gl0%2Bbp1877/build.tar.xz.0000 https://github.com/gardenlinux/package-libvirt/releases/download/11.3.0-27gl0%2Bbp1877/build.tar.xz.0000 https://github.com/gardenlinux/package-cloud-hypervisor-gl/releases/download/48.0-3gl0%2Bbp1877/build.tar.xz.0000; do
+for p in https://github.com/gardenlinux/package-edk2-cloud-hypervisor-gl/releases/download/$EDK2_VERSION/build.tar.xz.0000 https://github.com/gardenlinux/package-libvirt/releases/download/$LIBVIRT_VERSION/build.tar.xz.0000 https://github.com/gardenlinux/package-cloud-hypervisor-gl/releases/download/$CLOUD_HYPERVISOR_VERSION/build.tar.xz.0000; do
 	wget -q "$p" -O - | xz -d | tar xf - -C /tmp/custompackages
 done