diff --git a/package.json b/package.json
index 79b0c57b307d8bd3fb6b91f06fc1d875fa0932d1..eb4c6a24d7a58b2aac6e673a784e064cfaf99f1d 100644
--- a/package.json
+++ b/package.json
@@ -38,6 +38,7 @@
     "command-line-args": "^4.0.1",
     "command-line-usage": "^4.0.0",
     "discord.js": "^11.1.0",
+    "escape-string-regexp": "^1.0.5",
     "js-yaml": "^3.8.1",
     "marked": "^0.3.6",
     "matrix-appservice-bridge": "^1.3.5",