diff --git a/.github/scripts/get_win_deps.ps1 b/.github/scripts/get_win_deps.ps1
index 210dac92..036a3495 100644
--- a/.github/scripts/get_win_deps.ps1
+++ b/.github/scripts/get_win_deps.ps1
@@ -16,8 +16,8 @@ function getlibrary ([string] $URI, [string] $filename, [string] $hash, [string]
 }
 
 getlibrary 'https://www.zlib.net/zlib131.zip' 'zlib.zip' '72af66d44fcc14c22013b46b814d5d2514673dda3d115e64b690c1ad636e7b17' .
-getlibrary 'https://github.com/glennrp/libpng/archive/refs/tags/v1.6.37.zip' 'libpng.zip'  'c2c50c13a727af73ecd3fc0167d78592cf5e0bca9611058ca414b6493339c784' .
+getlibrary 'https://github.com/glennrp/libpng/archive/refs/tags/v1.6.43.zip' 'libpng.zip'  '5e18474a26814ae479e02ca6432da32d19dc6e615551d140c954a68d63b3f192' .
 getlibrary 'https://github.com/lexxmark/winflexbison/releases/download/v2.5.25/win_flex_bison-2.5.25.zip' 'winflexbison.zip'  '8d324b62be33604b2c45ad1dd34ab93d722534448f55a16ca7292de32b6ac135' install_dir
 
 Move-Item zlib-1.3.1 zlib
-Move-Item libpng-1.6.37 libpng
+Move-Item libpng-1.6.43 libpng
diff --git a/.github/scripts/mingw-w64-libpng-dev.sh b/.github/scripts/mingw-w64-libpng-dev.sh
index e6f64a97..17ab8a29 100755
--- a/.github/scripts/mingw-w64-libpng-dev.sh
+++ b/.github/scripts/mingw-w64-libpng-dev.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 set -e
 
-pngver=1.6.37
+pngver=1.6.43
 arch="$1"
 
 ## Grab sources and check them
diff --git a/.github/scripts/mingw-w64-libpng-dev.sha256sums b/.github/scripts/mingw-w64-libpng-dev.sha256sums
index 75b9ed9c..1bc10383 100644
--- a/.github/scripts/mingw-w64-libpng-dev.sha256sums
+++ b/.github/scripts/mingw-w64-libpng-dev.sha256sums
@@ -1,2 +1,2 @@
-10d9e0cb60e2b387a79b355eb7527c0bee2ed8cbd12cf04417cabc4d6976683c  libpng-1.6.37-apng.patch.gz
-505e70834d35383537b6491e7ae8641f1a4bed1876dbfe361201fc80868d88ca  libpng-1.6.37.tar.xz
+d6bd2a3f43f17020918a4c1bd81c1a78111b6f759af9c1d3c754f704a1bf0429  libpng-1.6.43-apng.patch.gz
+6a5ca0652392a2d7c9db2ae5b40210843c0bbc081cbd410825ab00cc59f14a6c  libpng-1.6.43.tar.xz