diff --git a/metadata.yml b/metadata.yml
index 7c8d474..09a5a83 100644
--- a/metadata.yml
+++ b/metadata.yml
@@ -1,3 +1,6 @@
 name: "barbican"
 version: "2017.6"
 source: "https://github.com/salt-formulas/salt-formula-barbican"
+dependencies:
+  - name: apache
+    source: "https://github.com/salt-formulas/salt-formula-apache"