diff --git a/.ci/boostrap.sh b/.ci/bootstrap.sh
similarity index 100%
rename from .ci/boostrap.sh
rename to .ci/bootstrap.sh
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b1415a776..620595097 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
     - name: install dependencies
       run: sudo apt update && sudo apt install libglu1-mesa-dev
     - name: bootstrap