diff --git a/README.md b/README.md
index 229d16f..7cd2155 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ This configuration is not required if utilizing the [Admin toolset](#supported-t
 * `CLOUD_SQL_MYSQL_DATABASE`: The name of the database to connect to.
 * `CLOUD_SQL_MYSQL_USER`: The database username.
 * `CLOUD_SQL_MYSQL_PASSWORD`: The password for the database user.
-* `CLOUD_SQL_MYSQL_IP_TYPE`: (Optional) The IP type i.e. “Public” or “Private” (Default: Public).
+* `CLOUD_SQL_MYSQL_IP_TYPE`: (Optional) The IP type i.e. “Public”, “Private”, or "PSC" (Default: Public).
 
 Ensure [Application Default Credentials](https://cloud.google.com/docs/authentication/gcloud) are available in your environment.
 
@@ -108,4 +108,4 @@ Find additional extensions to support your entire software development lifecycle
 
 * "✖ Error during discovery for server: MCP error -32000: Connection closed": The database connection has not been established. Ensure your configuration is set via environment variables.
 * "✖ MCP ERROR: Error: spawn /Users/<USER>/.gemini/extensions/cloud-sql-mysql/toolbox ENOENT": The Toolbox binary did not download correctly. Ensure you are using Gemini CLI v0.6.0+.
-* "cannot execute binary file": The Toolbox binary did not download correctly. Ensure the correct binary for your OS/Architecture has been downloaded. See [Installing the server](https://googleapis.github.io/genai-toolbox/getting-started/introduction/#installing-the-server) for more information.
\ No newline at end of file
+* "cannot execute binary file": The Toolbox binary did not download correctly. Ensure the correct binary for your OS/Architecture has been downloaded. See [Installing the server](https://googleapis.github.io/genai-toolbox/getting-started/introduction/#installing-the-server) for more information.