diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 24c65a05b..eccc15fa8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -77,13 +77,13 @@ jobs:
       shell: bash
       run: |
         # Don't try to cover everything, just what's in CI
-        source /etc/os-release
+        . /etc/os-release
         [ "$ID" = "ubuntu" ] && apt-get update; apt-get install -y python3-venv
         [ "$ID" = "arch" ] && pacman -Syu python
         [ "$ID" = "fedora" ] && dnf install python3
         [ "$ID" = "almalinux" ] && yum install python3
         python3 -m venv venv
     - name: Run setup.sh
-      run: source venv/bin/activate && ./setup.sh -i -u
+      run: . venv/bin/activate && ./setup.sh -i -u
     - name: Test angr import
       run: python -c "import angr; print('angr imports!')"