diff --git a/.github/workflows/sklearn.yml b/.github/workflows/sklearn.yml
index b70dbb2d..fb074308 100644
--- a/.github/workflows/sklearn.yml
+++ b/.github/workflows/sklearn.yml
@@ -34,7 +34,8 @@ jobs:
         pip install -r sklearn/requirements.txt
     - name: Run examples
       run: |
-        python sklearn/sklearn_simple.py
         python sklearn/sklearn_additional_args.py
+        python sklearn/sklearn_optuna_search_cv_simple.py
+        python sklearn/sklearn_simple.py
       env:
         OMP_NUM_THREADS: 1
diff --git a/.github/workflows/terminator.yml b/.github/workflows/terminator.yml
index f85978b9..683d2f3b 100644
--- a/.github/workflows/terminator.yml
+++ b/.github/workflows/terminator.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
 
     steps:
     - uses: actions/checkout@v4
@@ -28,11 +28,14 @@ jobs:
         pip install --progress-bar off -U setuptools
         pip install git+https://github.com/optuna/optuna.git
         python -c 'import optuna'
+        pip install git+https://github.com/optuna/optuna-integration.git
+        python -c 'import optuna_integration'
 
         pip install -r terminator/requirements.txt
     - name: Run examples
       run: |
-        python terminator/terminator_simple.py
         python terminator/terminator_improvement_plot.py
+        python terminator/terminator_search_cv.py
+        python terminator/terminator_simple.py
       env:
         OMP_NUM_THREADS: 1
diff --git a/sklearn/requirements.txt b/sklearn/requirements.txt
index 86dd3833..82031326 100644
--- a/sklearn/requirements.txt
+++ b/sklearn/requirements.txt
@@ -1,2 +1,3 @@
-scikit-learn>=0.19.0
 optuna
+scikit-learn>=0.19.0
+pandas  # used in sklearn_optuna_search_cv_simple.py
diff --git a/terminator/requirements.txt b/terminator/requirements.txt
index 7c36ac3b..2d8602cb 100644
--- a/terminator/requirements.txt
+++ b/terminator/requirements.txt
@@ -1,3 +1,4 @@
 botorch
-scikit-learn
+pandas  # used in terminator_search_cv.py
 plotly
+scikit-learn