diff --git a/server/routes.ts b/server/routes.ts
index cb2392d..504996c 100644
--- a/server/routes.ts
+++ b/server/routes.ts
@@ -323,7 +323,7 @@ export async function registerRoutes(app: Express): Promise<Server> {
       
       try {
         // Check if the API is working by hitting the version endpoint
-        const response = await axios.get("https://apiv3.iucnredlist.org/api/v3/version", {
+        const response = await axios.get("https://apiv4.iucnredlist.org/api/v4/information/api_version", {
           headers: {
             "Authorization": `Bearer ${iucnToken}`
           }