diff --git a/png-fix-metadata.diff b/png-fix-metadata.diff
new file mode 100644
index 0000000..5d7f406
--- /dev/null
+++ b/png-fix-metadata.diff
@@ -0,0 +1,11 @@
+--- png-0.15.2/Cargo.toml	1970-01-01T00:00:00+00:00
++++ png-0.15.2/Cargo.toml	2019-12-17T01:50:38.991180+00:00
+@@ -27,7 +27,7 @@
+ version = "1.2.0"
+ 
+ [dependencies.deflate]
+-version = "0.7.12"
++version = "0.8.2"
+ optional = true
+ 
+ [dependencies.inflate]