diff --git a/src/png b/src/png
index 5668fc8fd6..8cb5f8f158 160000
--- a/src/png
+++ b/src/png
@@ -1 +1 @@
-Subproject commit 5668fc8fd6cceb79cfd8dd3cdec24a4f998cfcea
+Subproject commit 8cb5f8f1587b95a0e86fa8c2becea0cef8ee0a8b