diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 1575730f..c179a339 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -20,7 +20,8 @@ jobs:
           rust: nightly
         - target: aarch64-unknown-linux-gnu
           os: ubuntu-latest
-          rust: nightly
+          # FIXME: pinned due to https://github.com/llvm/llvm-project/issues/127804
+          rust: nightly-2025-02-07
         - target: aarch64-pc-windows-msvc
           os: windows-latest
           rust: nightly