diff --git a/rules/libpng/default.bash b/rules/libpng/default.bash
index 26eba72..489b8c0 100644
--- a/rules/libpng/default.bash
+++ b/rules/libpng/default.bash
@@ -1,6 +1,6 @@
 version=\
 (
-    '1.6.12'
+    '1.6.18'
 )
 
 url=\
@@ -10,7 +10,7 @@ url=\
 
 md5=\
 (
-    'ee752da8aa75076500e4cf31318e636e'
+    '6a57c8e0f5469b9c9949a4b43d57b3a1'
 )
 
 configure()