diff --git a/compatibility.json b/compatibility.json
index 156c071e..23dfb707 100644
--- a/compatibility.json
+++ b/compatibility.json
@@ -1,4 +1,12 @@
 {
+  "0.20.0": {
+      "nns": {
+          "versions": ["0.4.0"]
+      },
+      "sns": {
+          "versions": ["0.4.0"]
+      }
+  },
   "0.19.0": {
       "nns": {
           "versions": ["0.3.1"]