diff --git a/clippy_utils/README.md b/clippy_utils/README.md
index 4b1a10a3d9cf..dc8695fef9f5 100644
--- a/clippy_utils/README.md
+++ b/clippy_utils/README.md
@@ -8,7 +8,7 @@ This crate is only guaranteed to build with this `nightly` toolchain:
 
 <!-- begin autogenerated nightly -->
 ```
-nightly-2025-11-28
+nightly-2025-12-11
 ```
 <!-- end autogenerated nightly -->
 
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 5157b79832a3..1384f4078ebe 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,6 +1,6 @@
 [toolchain]
 # begin autogenerated nightly
-channel = "nightly-2025-11-28"
+channel = "nightly-2025-12-11"
 # end autogenerated nightly
 components = ["cargo", "llvm-tools", "rust-src", "rust-std", "rustc", "rustc-dev", "rustfmt"]
 profile = "minimal"