diff --git a/config/rootfiles/common/zlib b/config/rootfiles/common/zlib
index 596b14641..ae2bd9e85 100644
--- a/config/rootfiles/common/zlib
+++ b/config/rootfiles/common/zlib
@@ -1,6 +1,6 @@
 lib/libz.so
 lib/libz.so.1
-lib/libz.so.1.3
+lib/libz.so.1.3.1
 #usr/include/zconf.h
 #usr/include/zlib.h
 #usr/lib/libz.a
diff --git a/lfs/zlib b/lfs/zlib
index 914e1d855..d7c723914 100644
--- a/lfs/zlib
+++ b/lfs/zlib
@@ -1,7 +1,7 @@
 ###############################################################################
 #                                                                             #
 # IPFire.org - A linux based firewall                                         #
-# Copyright (C) 2007-2023  IPFire Team  <info@ipfire.org>                     #
+# Copyright (C) 2007-2024  IPFire Team  <info@ipfire.org>                     #
 #                                                                             #
 # This program is free software: you can redistribute it and/or modify        #
 # it under the terms of the GNU General Public License as published by        #
@@ -24,7 +24,7 @@
 
 include Config
 
-VER        = 1.3
+VER        = 1.3.1
 
 THISAPP    = zlib-$(VER)
 DL_FILE    = $(THISAPP).tar.xz
@@ -47,7 +47,7 @@ objects = $(DL_FILE)
 
 $(DL_FILE) = $(DL_FROM)/$(DL_FILE)
 
-$(DL_FILE)_BLAKE2 = 5fe0f32339267348a313f23a21e9588bdb180b7415be303c85f5f169444d019e5f176ef7322f6e64297c360acc2a6041c50e2f66d1860e5c392d8970990f176a
+$(DL_FILE)_BLAKE2 = 42d109223801a493de6d52e7343403d7fc3234a6ca816425fe41ac9c18019b01b93841acd28a235e99f2256a6a17f93624e96b2ddb58d588c8190a6bedb82910
 
 install : $(TARGET)