diff --git a/package-lock.json b/package-lock.json
index ac067a8..4f88442 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,7 +19,7 @@
         "typescript": "^4.9.0"
       },
       "engines": {
-        "node": ">=18"
+        "node": "20"
       }
     },
     "node_modules/@ampproject/remapping": {
diff --git a/package.json b/package.json
index e944127..87f9bee 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
     "logs": "firebase functions:log"
   },
   "engines": {
-    "node": ">=18"
+    "node": "20"
   },
   "main": "lib/index.js",
   "dependencies": {