diff --git a/compile.sh b/compile.sh
index b0b5c3b..1735d65 100644
--- a/compile.sh
+++ b/compile.sh
@@ -26,7 +26,7 @@ PHPLEVELDB_VERSION="2963815338edfebc5ab8c512bcd2b72f0357ac6e"
 #LEVELDB_VERSION="1.18"
 LEVELDB_VERSION="b633756b51390a9970efde9068f60188ca06a724" # Check Mac OS X
 LIBXML_VERSION="2.9.4"
-LIBPNG_VERSION="1.6.21"
+LIBPNG_VERSION="1.6.23"
 BCOMPILER_VERSION="1.0.2"
 
 echo "[PocketMine] PHP compiler for Linux, Mac OS X and Android"