diff --git a/comac-in-a-box/Makefile b/comac-in-a-box/Makefile
index a631749..f2ad546 100644
--- a/comac-in-a-box/Makefile
+++ b/comac-in-a-box/Makefile
@@ -135,6 +135,7 @@
 	touch $@
 
 $(M)/omec: | $(M)/helm-ready /opt/cni/bin/simpleovs /opt/cni/bin/static $(M)/fabric
+	helm repo update
 	helm upgrade --install $(HELM_GLOBAL_ARGS) \
 		--namespace omec \
 		--values $(CIABVALUES) \