diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cf29e99..c2d642a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,10 +11,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.63.0
           - stable
-          - beta
-          - nightly
     steps:
       - uses: actions/checkout@master
       - name: Install Rust