diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index d32049932..3763e4a78 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -22,11 +22,11 @@ jobs:
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - name: Install Rust
-        run: rustup toolchain install nightly-2025-12-01 --profile minimal --component llvm-tools-preview
+        run: rustup toolchain install nightly-2026-08-31 --profile minimal --component llvm-tools-preview
       - uses: Swatinem/rust-cache@c19371144df3bb44fab255c43d04cbc2ab54d1c4 # v2.9.1
       - uses: taiki-e/install-action@e4b3a0453201addddc06d3a72db90326aad87084 # cargo-llvm-cov
       - name: Generate code coverage
-        run: cargo +nightly-2025-12-01 llvm-cov --all-features --workspace --doctests --lcov --output-path lcov.info
+        run: cargo +nightly-2026-08-31 llvm-cov --all-features --workspace --doctests --lcov --output-path lcov.info
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@fb8b3582c8e4def4969c97caa2f19720cb33a72f # v7.0.0
         continue-on-error: true