Bump dev dependencies

kaksmet · kaksmet · commit 32f3510aba18 · 2019-03-16T23:43:45.000+01:00
diff --git a/Cargo.toml b/Cargo.toml
@@ -15,8 +15,8 @@ byteorder = "1.0"
 rayon = { version = "1.0", optional = true }
 
 [dev-dependencies]
-png = "0.5"
-walkdir = "1.0"
+png = "0.14"
+walkdir = "2.0"
 
 [features]
 default = ["rayon"]
