diff --git a/providers/ospf/topology/BUCK b/providers/ospf/topology/BUCK
index 4197711..bb95985 100644
--- a/providers/ospf/topology/BUCK
+++ b/providers/ospf/topology/BUCK
@@ -6,6 +6,7 @@
 
 TEST_DEPS = [
     '//lib:TEST_ADAPTERS',
+    '//lib:JACKSON',
 ]
 
 osgi_jar_with_tests (