diff --git a/libs/langgraph-api/package.json b/libs/langgraph-api/package.json
index 4a2564b..63cb381 100644
--- a/libs/langgraph-api/package.json
+++ b/libs/langgraph-api/package.json
@@ -3,7 +3,7 @@
   "version": "0.0.12",
   "type": "module",
   "engines": {
-    "node": ">=20.16.0"
+    "node": "^18.19.0 || >=20.16.0"
   },
   "license": "MIT",
   "main": "./dist/cli/spawn.mjs",
diff --git a/libs/langgraph-cli/package.json b/libs/langgraph-cli/package.json
index c6ff0ea..fd120c5 100644
--- a/libs/langgraph-cli/package.json
+++ b/libs/langgraph-cli/package.json
@@ -3,7 +3,7 @@
   "version": "0.0.12",
   "type": "module",
   "engines": {
-    "node": ">=20.16.0"
+    "node": "^18.19.0 || >=20.16.0"
   },
   "license": "MIT",
   "main": "./dist/server.mjs",