diff --git a/projects/json/project.yaml b/projects/json/project.yaml
index 0d4a59850..037e190f0 100644
--- a/projects/json/project.yaml
+++ b/projects/json/project.yaml
@@ -1,2 +1,5 @@
 homepage: "https://github.com/nlohmann/json"
 primary_contact: "niels.lohmann@gmail.com"
+sanitizers:
+ - address
+ - undefined