diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4e454b4d588507ab1305e026295135c4633457ab..0f0c6d4a023e120417ceeaacd38967c00df151f5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
       run: |
         docker run --rm \
         --volume="${{ github.workspace }}:/srv/jekyll" \
-        jekyll/builder:latest /bin/bash -c "gem install bundler && bundle install && chmod -R 777 /srv/jekyll && jekyll build && bundle exec just-the-docs rake search:init"
+        jekyll/builder:latest /bin/bash -c "gem install bundler && sudo bundle install && chmod -R 777 /srv/jekyll && jekyll build && bundle exec just-the-docs rake search:init"
 
   jekyll-3-8-5:
     name: Build Jekyll site (v3.8.5)
@@ -28,7 +28,7 @@ jobs:
       run: |
         docker run --rm \
         --volume="${{ github.workspace }}:/srv/jekyll" \
-        jekyll/builder:3.8.5 /bin/bash -c "gem install bundler && bundle install && chmod -R 777 /srv/jekyll && jekyll build && bundle exec just-the-docs rake search:init"
+        jekyll/builder:3.8.5 /bin/bash -c "gem install bundler && sudo bundle install && chmod -R 777 /srv/jekyll && jekyll build && bundle exec just-the-docs rake search:init"
 
   assets:
     name: Format and test CSS and JS