diff --git a/docs/advanced/configuration.mdx b/docs/advanced/configuration.mdx
index 61e6423..9a6d9e4 100644
--- a/docs/advanced/configuration.mdx
+++ b/docs/advanced/configuration.mdx
@@ -106,7 +106,4 @@ export PERPLEXITY_API_KEY="pplx-..."
 # Optional: Custom timeouts
 export LLM_TIMEOUT="600"
 export STRIX_SANDBOX_EXECUTION_TIMEOUT="300"
-
-# Optional: Use custom Docker image
-export STRIX_IMAGE="ghcr.io/usestrix/strix-sandbox:latest"
 ```