diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 53b63b1..9a703d1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -3,11 +3,14 @@ on: [ push, pull_request ]
 jobs:
   build:
     runs-on: ubuntu-latest
+    continue-on-error: ${{ !matrix.required }}
     strategy:
       matrix:
         include:
-          - { rust: nightly }
-          - { rust: stable }
+          - { rust: "1.73", required: false }
+          - { rust: "1.74", required: false }
+          - { rust: stable, required: true }
+          - { rust: nightly, required: true }
     steps:
       - uses: actions/checkout@v3
       - uses: dtolnay/rust-toolchain@master