diff --git a/package.json b/package.json
index 482f65457..ffeadd8b9 100644
--- a/package.json
+++ b/package.json
@@ -89,7 +89,7 @@
     "bookmarks": "0.35.0",
     "bracket-matcher": "0.71.0",
     "command-palette": "0.34.0",
-    "deprecation-cop": "0.33.0",
+    "deprecation-cop": "0.34.0",
     "dev-live-reload": "0.41.0",
     "encoding-selector": "0.17.0",
     "exception-reporting": "0.21.0",