diff --git a/package.json b/package.json
index a7863aa1..4481fe2b 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,6 @@
     "build-docs": "run-s -c build-docs-remove build-docs-create",
     "build-and-open-docs-no-start": "run-s build-docs open-docs-no-start",
     "build-and-open-docs": "run-s build-docs open-docs",
-    "compress-images": "imageoptim \"src/editor/extensions/*.png\" \"src/editor/spinbtn/*.png\" \"src/editor/jgraduate/images/*.{png,gif}\" \"src/editor/images/*.png\"",
     "remark": "remark -q -f .",
     "prepublishOnly": "run-s build-docs build"
   },
@@ -132,7 +131,6 @@
     "eslint-plugin-node": "11.1.0",
     "eslint-plugin-promise": "5.1.0",
     "eslint-plugin-standard": "4.1.0",
-    "imageoptim-cli": "3.0.2",
     "jamilih": "0.54.0",
     "jsdoc": "3.6.7",
     "node-static": "0.7.11",