diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b8ce0b7..2c6ad37 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -82,7 +82,7 @@ jobs:
           python -m unittest tests.test_bounded_short_game tests.test_semantic_canonical_form -v
           python examples/bounded_short_game.py
       # dtolnay/rust-toolchain v1
-      - uses: dtolnay/rust-toolchain@e97e2d8cc328f1b50210efc529dca0028893a2d9
+      - uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772
         with:
           toolchain: "1.88"
           components: clippy,rustfmt