diff --git a/package.json b/package.json
index 247c4a3..16433ee 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "@web/dev-server": "^0.4",
     "eslint": "^8",
     "eslint-config-brightspace": "^1.0",
-    "sinon": "^18"
+    "sinon": "^19"
   },
   "files": [
     "/src"