diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index f262e88..63ca507 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -26,7 +26,7 @@ jobs:
                 rust-version:
                     - nightly
                     - stable
-                    - '1.63'
+                    - '1.64'
                 os:
                     - ubuntu-latest
         runs-on: ${{ matrix.os }}