diff --git a/.github/workflows/ci_cross_platform.yaml b/.github/workflows/ci_cross_platform.yaml
index e4c600f..454f231 100644
--- a/.github/workflows/ci_cross_platform.yaml
+++ b/.github/workflows/ci_cross_platform.yaml
@@ -54,7 +54,7 @@ jobs:
         name: Setup rust toolchain
         with:
           profile: minimal
-          toolchain: nightly-2021-10-23
+          toolchain: nightly-2022-08-11
           override: true
           components: miri
       - name: Run tests with Miri