diff --git a/src/png b/src/png
index 8cb5f8f158..f1ecc2c50d 160000
--- a/src/png
+++ b/src/png
@@ -1 +1 @@
-Subproject commit 8cb5f8f1587b95a0e86fa8c2becea0cef8ee0a8b
+Subproject commit f1ecc2c50d0976f3d8f0eaf805cbc399c0780d8b