diff --git a/asdf.lisp b/asdf.lisp
index 99807eb1f622a31a777e206104f3abbab8183fe2..252cc5ed1fb5d68620c1317cc35ba4aa29f4f6d4 100644
--- a/asdf.lisp
+++ b/asdf.lisp
@@ -262,7 +262,7 @@
   ;; This parameter isn't actually user-visible
   ;; -- please use the exported function ASDF:ASDF-VERSION below.
   ;; the 1+ hair is to ensure that we don't do an inadvertent find and replace
-  (subseq "VERSION:1.656" (1+ (length "VERSION"))))
+  (subseq "VERSION:1.657" (1+ (length "VERSION"))))
 
 (defun asdf-version ()
   "Exported interface to the version of ASDF currently installed. A string.