diff --git a/package-lock.json b/package-lock.json
index a9cefff..6335495 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "0.0.1-rc.7",
       "license": "MIT",
       "dependencies": {
-        "@withfig/autocomplete": "2.648.2",
+        "@withfig/autocomplete": "2.651.0",
         "ajv": "^8.12.0",
         "ansi-escapes": "^6.2.0",
         "ansi-styles": "^6.2.1",
@@ -42,6 +42,9 @@
         "ts-jest": "^29.1.1",
         "ts-node": "^10.9.2",
         "typescript": "^5.2.2"
+      },
+      "engines": {
+        "node": ">=16.6.0 <21.0.0"
       }
     },
     "node_modules/@aashutoshrathi/word-wrap": {
@@ -2089,9 +2092,9 @@
       }
     },
     "node_modules/@withfig/autocomplete": {
-      "version": "2.648.2",
-      "resolved": "https://registry.npmjs.org/@withfig/autocomplete/-/autocomplete-2.648.2.tgz",
-      "integrity": "sha512-Dw6Irj1YoWEq92zCPRLNDMA4voKjna7jr10DuHHvnrFRbt4xOiYVbBZM+mPCkRMTerUOjrSOcPGQM4j3sA/fyA==",
+      "version": "2.651.0",
+      "resolved": "https://registry.npmjs.org/@withfig/autocomplete/-/autocomplete-2.651.0.tgz",
+      "integrity": "sha512-Qw9cRf1rqMyervbtU7SU2XZcIBCJW4OmSP0ykgnzw5tP0FmZZhnyZKl8guzoDVvKfdBDBYwecqnLbBIF0sEruQ==",
       "dependencies": {
         "@fig/autocomplete-generators": "^2.4.0",
         "@fig/autocomplete-helpers": "^1.0.7",
@@ -9521,9 +9524,9 @@
       }
     },
     "@withfig/autocomplete": {
-      "version": "2.648.2",
-      "resolved": "https://registry.npmjs.org/@withfig/autocomplete/-/autocomplete-2.648.2.tgz",
-      "integrity": "sha512-Dw6Irj1YoWEq92zCPRLNDMA4voKjna7jr10DuHHvnrFRbt4xOiYVbBZM+mPCkRMTerUOjrSOcPGQM4j3sA/fyA==",
+      "version": "2.651.0",
+      "resolved": "https://registry.npmjs.org/@withfig/autocomplete/-/autocomplete-2.651.0.tgz",
+      "integrity": "sha512-Qw9cRf1rqMyervbtU7SU2XZcIBCJW4OmSP0ykgnzw5tP0FmZZhnyZKl8guzoDVvKfdBDBYwecqnLbBIF0sEruQ==",
       "requires": {
         "@fig/autocomplete-generators": "^2.4.0",
         "@fig/autocomplete-helpers": "^1.0.7",
diff --git a/package.json b/package.json
index d8ce85d..e6e90d1 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
   },
   "homepage": "https://github.com/microsoft/inshellisense#readme",
   "dependencies": {
-    "@withfig/autocomplete": "2.648.2",
+    "@withfig/autocomplete": "2.651.0",
     "ajv": "^8.12.0",
     "ansi-escapes": "^6.2.0",
     "ansi-styles": "^6.2.1",
diff --git a/src/runtime/runtime.ts b/src/runtime/runtime.ts
index c7eaf5d..83810ed 100644
--- a/src/runtime/runtime.ts
+++ b/src/runtime/runtime.ts
@@ -19,6 +19,9 @@ const specSet: any = {};
   let activeSet = specSet;
   const specRoutes = s.split("/");
   specRoutes.forEach((route, idx) => {
+    if (typeof activeSet !== "object") {
+      return;
+    }
     if (idx === specRoutes.length - 1) {
       const prefix = versionedSpeclist.includes(s) ? "/index.js" : `.js`;
       activeSet[route] = `@withfig/autocomplete/build/${s}${prefix}`;