diff --git a/src/hz.erl b/src/hz.erl
index 27a22cf..f6e1854 100644
--- a/src/hz.erl
+++ b/src/hz.erl
@@ -619,9 +619,9 @@ dry_run(TX) ->
 %% supplied accounts.
 
 dry_run(TX, Accounts) ->
-    case kb_current_hash() of
-        {ok, Hash} -> dry_run(TX, Accounts, Hash);
-        Error      -> Error
+    case top_block() of
+        {ok, #{"hash" := Hash}} -> dry_run(TX, Accounts, Hash);
+        Error                   -> Error
     end.