diff --git a/README.md b/README.md
index 4f2d648e..22e2f24b 100644
--- a/README.md
+++ b/README.md
@@ -53,7 +53,7 @@ The Gemini API provides a free tier with [100 requests per day](https://ai.googl
 
 ### Use a Vertex AI API key:
 
-The Vertex AI provides [free tier](https://cloud.google.com/vertex-ai/generative-ai/docs/start/express-mode/overview) using express mode for Gemini 2.5 Pro, control over which model you use, and access to higher rate limits with a billing account:
+The Vertex AI API provides a [free tier](https://cloud.google.com/vertex-ai/generative-ai/docs/start/express-mode/overview) using express mode for Gemini 2.5 Pro, control over which model you use, and access to higher rate limits with a billing account:
 
 1. Generate a key from [Google Cloud](https://cloud.google.com/vertex-ai/generative-ai/docs/start/api-keys).
 2. Set it as an environment variable in your terminal. Replace `YOUR_API_KEY` with your generated key and set GOOGLE_GENAI_USE_VERTEXAI to true