diff --git a/docker/examples/Dockerfile b/docker/examples/Dockerfile
index afd4c8d73..959c5a930 100644
--- a/docker/examples/Dockerfile
+++ b/docker/examples/Dockerfile
@@ -12,7 +12,8 @@ RUN pip install gym[atari] opencv-python-headless tensorflow lz4 keras pytest-ti
 RUN pip install -U h5py  # Mutes FutureWarnings
 RUN pip install --upgrade bayesian-optimization
 RUN pip install --upgrade git+git://github.com/hyperopt/hyperopt.git
-RUN pip install --upgrade sigopt nevergrad scikit-optimize hpbandster ConfigSpace lightgbm xgboost torch torchvision
+RUN pip install ConfigSpace==0.4.10
+RUN pip install --upgrade sigopt nevergrad scikit-optimize hpbandster lightgbm xgboost torch torchvision
 RUN pip install -U tabulate mlflow
 RUN pip install -U pytest-remotedata>=0.3.1
 RUN conda install pytorch-cpu torchvision-cpu -c pytorch
diff --git a/docker/tune_test/Dockerfile b/docker/tune_test/Dockerfile
index ae8355856..2b6aaef15 100644
--- a/docker/tune_test/Dockerfile
+++ b/docker/tune_test/Dockerfile
@@ -14,7 +14,8 @@ RUN conda remove -y --force wrapt
 RUN pip install gym[atari]==0.10.11 opencv-python-headless tensorflow lz4 keras pytest-timeout smart_open torch torchvision
 RUN pip install --upgrade bayesian-optimization
 RUN pip install --upgrade git+git://github.com/hyperopt/hyperopt.git
-RUN pip install --upgrade sigopt nevergrad scikit-optimize hpbandster ConfigSpace lightgbm xgboost
+RUN pip install ConfigSpace==0.4.10
+RUN pip install --upgrade sigopt nevergrad scikit-optimize hpbandster lightgbm xgboost
 RUN pip install -U mlflow
 RUN pip install -U pytest-remotedata>=0.3.1