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diff --git a/libHX.changes b/libHX.changes
index 33531f5..48d4dd1 100644
--- a/libHX.changes
+++ b/libHX.changes
@@ -1,7 +1,7 @@
 -------------------------------------------------------------------
-Sat Oct  2 22:02:53 UTC 2021 - Jan Engelhardt <jengelh@inai.de>
+Sun Oct  3 00:28:41 UTC 2021 - Jan Engelhardt <jengelh@inai.de>
 
-- Update to release 4.0
+- Update to release 4.0.1
   * lib: add ``HX_slurp_fd``, ``HX_slurp_file``
   * proc: add ``HXproc_switch_user``
   * proc: add ``HXproc_top_fd``
diff --git a/libHX.spec b/libHX.spec
index 4825748..a60e24f 100644
--- a/libHX.spec
+++ b/libHX.spec
@@ -18,7 +18,7 @@
 
 Name:           libHX
 %define lname   libHX32
-Version:        4.0
+Version:        4.0.1
 Release:        0
 Summary:        Collection of routines for C and C++ programming
 License:        LGPL-2.1-or-later