diff --git a/poiu.asd b/poiu.asd
index 41d26dccdd7b97def4340191bb810602d31f3ea9..cceda0b9134587fb21014d46dec6cf05c1090c3e 100644
--- a/poiu.asd
+++ b/poiu.asd
@@ -21,6 +21,6 @@ POIU is a variant of ASDF that may operate on your systems in parallel.
 POIU will notably compile each Lisp file in its own forked process,
 in parallel with other operations (compilation or loading).
 However, it will load FASLs serially as they become available."
-  :version (:read-file-form "poiu.lisp" :path (1 2 2))
-  :depends-on ((:version :asdf "2.26.114")) ; for deferred-warnings support.
+  :version (:read-file-form "poiu.lisp" :at (1 2 2))
+  :depends-on ((:version :asdf "2.26.136")) ; for :at specifier above
   :components ((:file "poiu")))