diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index daf7bf8..af3bf58 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -66,7 +66,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        toolchain: ["beta", "nightly"]
+        toolchain: ["1.77", "beta", "nightly"]
     steps:
       - name: Checkout
         uses: actions/checkout@v4