diff --git a/config/image_optim.yml b/config/image_optim.yml
index 9100cd7f5..0cb37e1ea 100644
--- a/config/image_optim.yml
+++ b/config/image_optim.yml
@@ -1,4 +1,5 @@
 skip_missing_workers: true
+oxipng: false
 pngout: false
 svgo:
   disable_plugins: ["cleanupIDs", "removeUnknownsAndDefaults"]
diff --git a/config/image_optim/test.yml b/config/image_optim/test.yml
index 00584e523..7e81f35f6 100644
--- a/config/image_optim/test.yml
+++ b/config/image_optim/test.yml
@@ -5,6 +5,7 @@ jhead: false
 jpegoptim: false
 jpegtran: false
 optipng: false
+oxipng: false
 pngquant: false
 pngout: false
 pngcrush: false