diff --git a/libpng-1.6.40.tar.xz b/libpng-1.6.40.tar.xz
deleted file mode 100644
index 699d570..0000000
--- a/libpng-1.6.40.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:535b479b2467ff231a3ec6d92a525906fb8ef27978be4f66dbe05d3f3a01b3a1
-size 1021332
diff --git a/libpng-1.6.42.tar.xz b/libpng-1.6.42.tar.xz
new file mode 100644
index 0000000..3a9d5e5
--- /dev/null
+++ b/libpng-1.6.42.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c919dbc11f4c03b05aba3f8884d8eb7adfe3572ad228af972bb60057bdb48450
+size 1035484
diff --git a/libpng16.changes b/libpng16.changes
index 56052c7..fb0c5cc 100644
--- a/libpng16.changes
+++ b/libpng16.changes
@@ -1,3 +1,11 @@
+------------------------------------------------------------------
+Sat Feb 17 04:39:45 UTC 2024 - Yann BOYER <yann.boyer742@gmail.com>
+
+- Update to version 1.6.42:
+  * Fixed the implementation of the macro function "png_check_sig".
+   This was an API regression, introduced in libpng-1.6.41.
+   (Reported by Matthieu Darbois)
+
 -------------------------------------------------------------------
 Thu Jun 22 18:04:49 UTC 2023 - Martin Pluskal <mpluskal@suse.com>
 
diff --git a/libpng16.spec b/libpng16.spec
index 4f8ae78..889c840 100644
--- a/libpng16.spec
+++ b/libpng16.spec
@@ -20,7 +20,7 @@
 %define asan_build  0
 %define major   1
 %define minor   6
-%define micro   40
+%define micro   42
 %define branch  %{major}%{minor}
 %define libname libpng%{branch}-%{branch}
 %define debug_package_requires %{libname} = %{version}-%{release}