diff --git a/README.md b/README.md
index 2edb977..b4a5c21 100644
--- a/README.md
+++ b/README.md
@@ -52,6 +52,7 @@ Flags : {
 The config files may be of the following types:
 - toml
 - yml
+- json
 
 ## Keep in mind
 - There is no case sensitivty, i.e. "pim", "Pim" and "PIM" are all considered the same