diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8c590a9da..328aaf220 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,13 +22,14 @@ jobs:
   lean: # Lean isn't supported by Nix, so we need to add extra steps
     runs-on: [ubuntu-latest]
     steps:
-      - run: wget -q https://raw.githubusercontent.com/leanprover-community/mathlib4/master/scripts/install_debian.sh && bash install_debian.sh ; rm -f install_debian.sh && source ~/.profile
+      - run: ls
+      #- run: wget -q https://raw.githubusercontent.com/leanprover-community/mathlib4/master/scripts/install_debian.sh && bash install_debian.sh ; rm -f install_debian.sh && source ~/.profile
       # Install curl
-      #- run: sudo apt update && sudo apt install curl
+      - run: sudo apt update && sudo apt install curl
       # Install Elan (https://leanprover-community.github.io/install/linux.html)
-      #- run: curl https://raw.githubusercontent.com/leanprover/elan/master/elan-init.sh -sSf -y | sh
+      #- run: curl https://raw.githubusercontent.com/leanprover/elan/master/elan-init.sh -sSf | sh
+      - run: curl https://raw.githubusercontent.com/leanprover/elan/master/elan-init.sh -sSf | bash -s -y
       #- run: sudo apt-get update && sudo apt-get install make
       # Verify
-      - run: ls
       - run: cd tests/lean && make
       #- run: cd tests/lean && lake build