diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 7515fa6..b3c5684 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -64,7 +64,7 @@ jobs:
           githubToken: ${{ github.token }}
           install: |
             apt-get update
-            apt-get install -y --no-install-recommends python3 python3-pip gcc libc6-dev
+            apt-get install -y --no-install-recommends python3 python3-pip python3-pybigwig
             pip3 install -U pip pytest
           run: |
             set -e