diff --git a/packages/gatsby-plugin-sharp/package.json b/packages/gatsby-plugin-sharp/package.json
index eb6ad26430d8d..cc4b332b18a34 100644
--- a/packages/gatsby-plugin-sharp/package.json
+++ b/packages/gatsby-plugin-sharp/package.json
@@ -11,8 +11,8 @@
     "babel-runtime": "^6.26.0",
     "bluebird": "^3.5.0",
     "imagemin": "^5.2.2",
-    "imagemin-pngquant": "^5.0.0",
-    "imagemin-webp": "^4.0.0",
+    "imagemin-pngquant": "^6.0.0",
+    "imagemin-webp": "^5.0.0",
     "lodash": "^4.17.4",
     "potrace": "^2.1.1",
     "probe-image-size": "^3.2.0",