diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -407,6 +407,8 @@ jobs:
         with:
           persist-credentials: false
       - uses: dtolnay/rust-toolchain@b725eda525362e7cf34af9a7243cac1e3f01a7ec # nightly
+        with:
+          toolchain: nightly
       - uses: Swatinem/rust-cache@d1527c8f67ef9af357290475d4af4b0fab8f12e0 # v2.9.3
         with:
           workspaces: crates/${{ matrix.target.crate }}/fuzz