diff --git a/package.json b/package.json
index aff5263..4409a30 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "fancy-log": "^1.3.2",
     "filesize": "^3.5.0",
     "gifsicle": "^4.0.1",
-    "guetzli": "^1.0.1",
+    "guetzli": "^2.0.0",
     "is-gif": "^3.0.0",
     "is-jpg": "^2.0.0",
     "is-png": "^1.1.0",
@@ -38,7 +38,7 @@
     "round10": "^1.0.3",
     "svgo": "^1.0.2",
     "through2-concurrent": "^2.0.0",
-    "zopflipng-bin": "^4.1.0"
+    "zopflipng-bin": "^5.0.0"
   },
   "devDependencies": {
     "ava": "^1.0.1",