diff --git a/src/types/common.ts b/src/types/common.ts
index 1d28fc5d..d7225b22 100644
--- a/src/types/common.ts
+++ b/src/types/common.ts
@@ -182,6 +182,10 @@ export enum DefaultContainerCategory {
    * The default container image for Computer Use.
    */
   DEFAULT_CONTAINER_CATEGORY_COMPUTER_USE = 'DEFAULT_CONTAINER_CATEGORY_COMPUTER_USE',
+  /**
+   * The default container image for Shell Sandbox.
+   */
+  DEFAULT_CONTAINER_CATEGORY_SHELL_SANDBOX = 'DEFAULT_CONTAINER_CATEGORY_SHELL_SANDBOX',
 }
 
 /** Input only. Action to take on the source SandboxEnvironment after the snapshot is taken. This field is only used in CreateSandboxEnvironmentSnapshotRequest and it is not stored in the resource. */