diff --git a/src/worker.mjs b/src/worker.mjs
index 00c855b..3e93d56 100644
--- a/src/worker.mjs
+++ b/src/worker.mjs
@@ -68,7 +68,7 @@ const BASE_URL = "https://generativelanguage.googleapis.com";
 const API_VERSION = "v1beta";
 
 // https://github.com/google-gemini/generative-ai-js/blob/cf223ff4a1ee5a2d944c53cddb8976136382bee6/src/requests/request.ts#L71
-const API_CLIENT = "genai-js/0.19.0"; // npm view @google/generative-ai version
+const API_CLIENT = "genai-js/0.21.0"; // npm view @google/generative-ai version
 const makeHeaders = (apiKey, more) => ({
   "x-goog-api-client": API_CLIENT,
   ...(apiKey && { "x-goog-api-key": apiKey }),
diff --git a/wrangler.toml b/wrangler.toml
index 0948f54..43b9d40 100644
--- a/wrangler.toml
+++ b/wrangler.toml
@@ -1,4 +1,4 @@
 name = "gemini"
 main = "src/worker.mjs"
-compatibility_date = "2024-01-17"
+compatibility_date = "2024-09-23"
 compatibility_flags = [ "nodejs_compat" ]