diff --git a/README.md b/README.md
index 6d7c197..52f11a6 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,10 @@
 
 json parser written (mostly) in execline
 
+**this is a joke, it's not a proper json parser and
+probably even has some command injection vulnerability.
+do NOT use this.**
+
 requirements:
 - execline
 - [execline-state](https://git.ddd.rip/ptrcnull/execline-state)