diff --git a/sm.puri.Calls.json b/sm.puri.Calls.json
index ba9a822..f0ba242 100644
--- a/sm.puri.Calls.json
+++ b/sm.puri.Calls.json
@@ -1,7 +1,7 @@
 {
     "app-id" : "sm.puri.Calls",
     "runtime" : "org.gnome.Platform",
-    "runtime-version" : "3.28",
+    "runtime-version" : "master",
     "sdk" : "org.gnome.Sdk",
     "command" : "calls",
     "finish-args" : [