diff --git a/asdf.lisp b/asdf.lisp
index 04e801c5d5380b1e96589a1bc11caffd502509c1..b8af0139f49f6e511f0f6a8dea067b0f5de930e3 100644
--- a/asdf.lisp
+++ b/asdf.lisp
@@ -247,7 +247,7 @@
   ;; 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:1.632" (1+ (length "VERSION"))))
+  (subseq "VERSION:1.633" (1+ (length "VERSION"))))
 
 (defun asdf-version ()
   "Exported interface to the version of ASDF currently installed. A string.