diff --git a/Cargo.toml b/Cargo.toml
index 6ff5230e..34a2e9d7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,7 @@ edition = "2018"
 rust-version = "1.74.0"
 
 [workspace.metadata.rbmt.toolchains]
-nightly = "nightly-2026-07-23"
+nightly = "nightly-2026-08-20"
 stable = "1.98.0"
 
 [features]