diff --git a/package.json b/package.json
index d3cd9ad..fa38fe0 100644
--- a/package.json
+++ b/package.json
@@ -25,6 +25,7 @@
   "dependencies": {
     "@etherpad/node-openid-client": "npm:@jsr/etherpad__node-openid-client@^0.1.0",
     "ajv": "^8.18.0",
+    "lru-cache": "^6.0.0",
     "openid-client": "^5.7.1"
   },
   "devDependencies": {