diff --git a/.github/workflows/build_rpi3.yml b/.github/workflows/build_rpi3.yml
index 506fd65a..c5b8e4e3 100644
--- a/.github/workflows/build_rpi3.yml
+++ b/.github/workflows/build_rpi3.yml
@@ -39,7 +39,8 @@ jobs:
     - name: Set up Ruby
       run: |
         gem install bundler
-        bundle install --retry 3 --without uart
+        bundle config set without 'uart'
+        bundle install --retry 3
     - name: Make
       run: |
         BSP=rpi3 bundle exec ruby utils/devtool.rb make
diff --git a/.github/workflows/build_rpi4.yml b/.github/workflows/build_rpi4.yml
index 810da145..56ae0582 100644
--- a/.github/workflows/build_rpi4.yml
+++ b/.github/workflows/build_rpi4.yml
@@ -39,7 +39,8 @@ jobs:
     - name: Set up Ruby
       run: |
         gem install bundler
-        bundle install --retry 3 --without uart
+        bundle config set without 'uart'
+        bundle install --retry 3
     - name: Make
       run: |
         BSP=rpi4 bundle exec ruby utils/devtool.rb make
diff --git a/.github/workflows/sanity.yml b/.github/workflows/sanity.yml
index 63102b4d..5ef7b129 100644
--- a/.github/workflows/sanity.yml
+++ b/.github/workflows/sanity.yml
@@ -28,7 +28,8 @@ jobs:
     - name: Set up Ruby
       run: |
         gem install bundler
-        bundle install --retry 3 --without uart
+        bundle config set without 'uart'
+        bundle install --retry 3
     - name: Setup misspell
       run: |
         curl -L -o ./install-misspell.sh https://git.io/misspell
diff --git a/.github/workflows/test_integration.yml b/.github/workflows/test_integration.yml
index b5555248..1b5a1fa2 100644
--- a/.github/workflows/test_integration.yml
+++ b/.github/workflows/test_integration.yml
@@ -39,7 +39,8 @@ jobs:
     - name: Set up Ruby
       run: |
         gem install bundler
-        bundle install --retry 3 --without uart
+        bundle config set without 'uart'
+        bundle install --retry 3
     - name: Make all
       run: |
         bundle exec ruby utils/devtool.rb test_integration
diff --git a/.github/workflows/test_unit.yml b/.github/workflows/test_unit.yml
index ef85071b..f6b61247 100644
--- a/.github/workflows/test_unit.yml
+++ b/.github/workflows/test_unit.yml
@@ -39,7 +39,8 @@ jobs:
     - name: Set up Ruby
       run: |
         gem install bundler
-        bundle install --retry 3 --without uart
+        bundle config set without 'uart'
+        bundle install --retry 3
     - name: Make all
       run: |
         bundle exec ruby utils/devtool.rb test_unit