diff --git a/groups.d/251.native_packages_lib.group b/groups.d/251.native_packages_lib.group
index d28535a..50e8b98 100644
--- a/groups.d/251.native_packages_lib.group
+++ b/groups.d/251.native_packages_lib.group
@@ -212,8 +212,8 @@ ksba_cv_visibility_attribute=yes"};
 : ${PKG_LIBPCAP_CONFIG_CACHE_EXTRA:="ac_cv_lbl_unaligned_fail=no"};
 : ${PKG_LIBPCAP_SUBDIR:="libpcap-libpcap-${PKG_LIBPCAP_VERSION}"};
 : ${PKG_LIBPNG_DEPENDS:="libz"};
-: ${PKG_LIBPNG_SHA256SUM:=1f4696ce70b4ee5f85f1e1623dc1229b210029fa4b7aee573df3e2ba7b036937};
-: ${PKG_LIBPNG_VERSION:=1.6.39};
+: ${PKG_LIBPNG_SHA256SUM:=535b479b2467ff231a3ec6d92a525906fb8ef27978be4f66dbe05d3f3a01b3a1};
+: ${PKG_LIBPNG_VERSION:=1.6.40};
 : ${PKG_LIBPNG_URL:=https://ftp.osuosl.org/pub/blfs/conglomeration/libpng/libpng-${PKG_LIBPNG_VERSION}.tar.xz};
 : ${PKG_LIBPSL_DEPENDS:="libidn2 libunistring libiconv"}
 : ${PKG_LIBPSL_SHA256SUM:=e35991b6e17001afa2c0ca3b10c357650602b92596209b7492802f3768a6285f};