RKE2.0 back to 1.23.15

Change-Id: I3260aaf1448db79aff60c14ede482eb6968c3a91
diff --git a/Makefile b/Makefile
index 2d71e6f..a29875c 100644
--- a/Makefile
+++ b/Makefile
@@ -24,9 +24,9 @@
 KUBESPRAY_VERSION ?= release-2.17
 DOCKER_VERSION    ?= '20.10'
 HELM_VERSION	  ?= v3.10.3
-KUBECTL_VERSION   ?= v1.25.5
+KUBECTL_VERSION   ?= v1.23.15
 
-RKE2_K8S_VERSION  ?= v1.25.5+rke2r1
+RKE2_K8S_VERSION  ?= v1.23.15+rke2r1
 K8S_VERSION       ?= v1.23.0
 
 OAISIM_UE_IMAGE ?= andybavier/lte-uesoftmodem:1.1.0-$(shell uname -r)