diff --git a/src/lib/constants.ts b/src/lib/constants.ts
index f19cb92..818f9d0 100644
--- a/src/lib/constants.ts
+++ b/src/lib/constants.ts
@@ -3,7 +3,7 @@ import { DeepgramClientOptions } from "./types/DeepgramClientOptions";
 import { FetchOptions } from "./types/Fetch";
 import { version } from "./version";
 
-export const NODE_VERSION = process.versions.node;
+export const NODE_VERSION = process?.versions.node || "Unknown";
 
 export const DEFAULT_HEADERS = {
   "Content-Type": `application/json`,