diff --git a/Earthfile b/Earthfile
index da8f3cc..dd38e83 100644
--- a/Earthfile
+++ b/Earthfile
@@ -21,7 +21,7 @@ ARG LUET_PROJECT=luet-repo
 
 # Spectro Cloud and Kairos tags.
 ARG PE_VERSION=v4.5.9
-ARG SPECTRO_LUET_VERSION=v45b-packs-3
+ARG SPECTRO_LUET_VERSION=v1.3.12
 ARG KAIROS_VERSION=v3.1.3
 ARG K3S_FLAVOR_TAG=k3s1
 ARG RKE2_FLAVOR_TAG=rke2r1