diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index b93f2293..64295d76 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -132,7 +132,7 @@ jobs:
             - name: Set up Rust (nightly)
               uses: dtolnay/rust-toolchain@stable
               with:
-                  toolchain: nightly-2025-07-04
+                  toolchain: nightly-2026-09-11
 
             - name: Install Rust target
               run: rustup target add ${{ matrix.target }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 9dd82968..c447f7c8 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -141,7 +141,7 @@ jobs:
       - name: Set up Rust (nightly)
         uses: dtolnay/rust-toolchain@stable
         with:
-          toolchain: nightly-2025-07-04
+          toolchain: nightly-2026-09-11
 
       - name: Install Rust target
         run: rustup target add ${{ matrix.target }}