diff --git a/litellm/anthropic_beta_headers_config.json b/litellm/anthropic_beta_headers_config.json
index b57239f8699..332d9b3ad9d 100644
--- a/litellm/anthropic_beta_headers_config.json
+++ b/litellm/anthropic_beta_headers_config.json
@@ -67,6 +67,7 @@
     "text_editor_20241022": null,
     "text_editor_20250124": null,
     "thinking-binding-controls-2026-08-01": null,
+    "thinking-display-updates-2026-08-18": "thinking-display-updates-2026-08-18",
     "token-efficient-tools-2025-02-19": null,
     "web-fetch-2025-09-10": "web-fetch-2025-09-10",
     "web-search-2025-03-05": "web-search-2025-03-05"
@@ -100,6 +101,7 @@
     "text_editor_20241022": null,
     "text_editor_20250124": null,
     "thinking-binding-controls-2026-08-01": "thinking-binding-controls-2026-08-01",
+    "thinking-display-updates-2026-08-18": "thinking-display-updates-2026-08-18",
     "token-efficient-tools-2025-02-19": null,
     "tool-search-tool-2025-10-19": null,
     "web-fetch-2025-09-10": null,
@@ -172,6 +174,7 @@
     "text_editor_20241022": null,
     "text_editor_20250124": null,
     "thinking-binding-controls-2026-08-01": "thinking-binding-controls-2026-08-01",
+    "thinking-display-updates-2026-08-18": "thinking-display-updates-2026-08-18",
     "token-efficient-tools-2025-02-19": "token-efficient-tools-2025-02-19",
     "tool-examples-2025-10-29": "tool-examples-2025-10-29",
     "tool-search-tool-2025-10-19": "tool-search-tool-2025-10-19",
@@ -207,6 +210,7 @@
     "text_editor_20241022": null,
     "text_editor_20250124": null,
     "thinking-binding-controls-2026-08-01": "thinking-binding-controls-2026-08-01",
+    "thinking-display-updates-2026-08-18": "thinking-display-updates-2026-08-18",
     "token-efficient-tools-2025-02-19": null,
     "tool-search-tool-2025-10-19": "tool-search-tool-2025-10-19",
     "web-fetch-2025-09-10": null,