diff --git a/gnu/packages/python-build.scm b/gnu/packages/python-build.scm
index 77cbef14ed8..d627522651a 100644
--- a/gnu/packages/python-build.scm
+++ b/gnu/packages/python-build.scm
@@ -1307,7 +1307,8 @@ Six supports every Python version since 2.5.  It is contained in only one
 Python file, so it can be easily copied into your project.")
     (license license:x11)))
 
-(define-public python-six-bootstrap python-six)
+;; XXX: Deprecated on <2026-01-23>.
+(define-deprecated/public-alias python-six-bootstrap python-six)
 
 (define-public python-editables
   (package