diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9323298..db3084d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,7 +25,7 @@ jobs:
       - name: Setup Deno
         uses: denoland/setup-deno@v1
         with:
-          deno-version: v1.x
+          deno-version: v1.24.3
 
       - name: Format
         run: deno fmt --check