diff --git a/asdf.asd b/asdf.asd
index 463aa7c560bf67f6865b2ab243acc1f99530f9d4..25182789fdacecfeba0c206843dcddf5ea838a04 100644
--- a/asdf.asd
+++ b/asdf.asd
@@ -75,7 +75,7 @@
   :licence "MIT"
   :description "Another System Definition Facility"
   :long-description "ASDF builds Common Lisp software organized into defined systems."
-  :version "3.1.3.8" ;; to be automatically updated by make bump-version
+  :version "3.1.3.9" ;; to be automatically updated by make bump-version
   :depends-on ()
   #+asdf3 :encoding #+asdf3 :utf-8
   :class #.(if (find-class 'package-inferred-system nil) 'package-inferred-system 'system)
diff --git a/header.lisp b/header.lisp
index 621732360206d7eb7c7fb9f95e8f5ea5b77f4214..c0c121dfb940e8caa1bc54a922cd81dca11ddcae 100644
--- a/header.lisp
+++ b/header.lisp
@@ -1,5 +1,5 @@
 ;;; -*- mode: Common-Lisp; Base: 10 ; Syntax: ANSI-Common-Lisp ; buffer-read-only: t; -*-
-;;; This is ASDF 3.1.3.8: Another System Definition Facility.
+;;; This is ASDF 3.1.3.9: Another System Definition Facility.
 ;;;
 ;;; Feedback, bug reports, and patches are all welcome:
 ;;; please mail to <asdf-devel@common-lisp.net>.
diff --git a/upgrade.lisp b/upgrade.lisp
index dec31b946c5472b09efd58cb978ce693fdb81f5f..f1498db238f3854fbb441444b0b9eda0ee046c51 100644
--- a/upgrade.lisp
+++ b/upgrade.lisp
@@ -67,7 +67,7 @@ previously-loaded version of ASDF."
          ;; "3.4.5.67" would be a development version in the official branch, on top of 3.4.5.
          ;; "3.4.5.0.8" would be your eighth local modification of official release 3.4.5
          ;; "3.4.5.67.8" would be your eighth local modification of development version 3.4.5.67
-         (asdf-version "3.1.3.8")
+         (asdf-version "3.1.3.9")
          (existing-version (asdf-version)))
     (setf *asdf-version* asdf-version)
     (when (and existing-version (not (equal asdf-version existing-version)))
diff --git a/version.lisp-expr b/version.lisp-expr
index c39099140d345dcb8c54ead86c5690905f06ff0b..4743f86264e98c83011f926dc75b242b4b62abe3 100644
--- a/version.lisp-expr
+++ b/version.lisp-expr
@@ -1,2 +1,2 @@
-"3.1.3.8"
+"3.1.3.9"