diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 390e565..8fd0512 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         platform: [ubuntu-latest, macos-latest, windows-latest]
-        rust: [1.54, stable]
+        rust: ['1.54', stable]
     runs-on: ${{ matrix.platform }}
     steps:
       - uses: actions/checkout@v2
@@ -60,7 +60,7 @@ jobs:
     - uses: actions/checkout@v2
     - uses: actions-rs/toolchain@v1
       with:
-        toolchain: 1.54
+        toolchain: '1.60'
         override: true
     - run: rustup component add rustfmt
     - uses: actions-rs/cargo@v1