diff --git a/.github/workflows/wheels-dependencies.sh b/.github/workflows/wheels-dependencies.sh
index f0c96d16098..0f8eac5bb51 100755
--- a/.github/workflows/wheels-dependencies.sh
+++ b/.github/workflows/wheels-dependencies.sh
@@ -39,7 +39,7 @@ ARCHIVE_SDIR=pillow-depends-main
 # Package versions for fresh source builds
 FREETYPE_VERSION=2.13.3
 HARFBUZZ_VERSION=10.2.0
-LIBPNG_VERSION=1.6.46
+LIBPNG_VERSION=1.6.47
 JPEGTURBO_VERSION=3.1.0
 OPENJPEG_VERSION=2.5.3
 XZ_VERSION=5.6.4
diff --git a/winbuild/build_prepare.py b/winbuild/build_prepare.py
index f942716cb0b..5665abaab21 100644
--- a/winbuild/build_prepare.py
+++ b/winbuild/build_prepare.py
@@ -117,7 +117,7 @@ def cmd_msbuild(
     "JPEGTURBO": "3.1.0",
     "LCMS2": "2.16",
     "LIBIMAGEQUANT": "4.3.4",
-    "LIBPNG": "1.6.46",
+    "LIBPNG": "1.6.47",
     "LIBWEBP": "1.5.0",
     "OPENJPEG": "2.5.3",
     "TIFF": "4.6.0",