diff --git a/helm-cmd.mk b/helm-cmd.mk
index 1183f23a3..8cfc909b0 100644
--- a/helm-cmd.mk
+++ b/helm-cmd.mk
@@ -1,5 +1,5 @@
 ifdef DRY_RUN
-HELM_CMD ?= helm diff --install --suppress-secrets
+HELM_CMD ?= helm diff upgrade --install --dry-run=server --suppress-secrets --three-way-merge
 else
 HELM_CMD ?= helm upgrade --install
 endif