diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f34d56fb..68948afa 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -12,7 +12,7 @@ jobs:
     - name: install dependencies
       run: |
           sudo apt-get update
-          sudo apt-get install cython3
+          pip install cython
     - name: prepare environment
       run: |
           echo "target_triplet=`gcc -dumpmachine`" >> $GITHUB_ENV