diff --git a/package.json b/package.json
index 6e8ac3b3528ef34002d958c054f9b350f8639f54..346870bb82b86422b1795629338765d2bafa1453 100755
--- a/package.json
+++ b/package.json
@@ -30,6 +30,7 @@
     "pdfjs-dist": "2.2.228",
     "photoswipe": "^4.1.3",
     "tinymce": "^5.1.6",
+    "tinymce-i18n": "^19.9.17",
     "tooltipster": "^4.2.7",
     "uglify-es": "3.2.2",
     "uglifyjs-webpack-plugin": "2.1.1",