diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 97704bcf..f1908eb5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -40,7 +40,7 @@ jobs:
         run: sudo apt install -y libidn2-dev cpanminus
 
       - name: cpan
-        run: cpanm install --deps Devel::CheckLib Module::Install Module::Install::XSUtil Test::Fatal
+        run: sudo cpanm install --deps Devel::CheckLib Module::Install Module::Install::XSUtil Test::Fatal
 
       - name: install
         run: cpanm --verbose --notest --configure-args="--no-ed25519" .