diff --git a/jenkins/Dockerfile-blossom.integration.rocky b/jenkins/Dockerfile-blossom.integration.rocky
index b293bba640f..5dbe24c9d17 100644
--- a/jenkins/Dockerfile-blossom.integration.rocky
+++ b/jenkins/Dockerfile-blossom.integration.rocky
@@ -45,17 +45,16 @@ RUN wget --quiet https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86
     /bin/bash ~/miniconda.sh -b -p /opt/conda && \
     rm -f ~/miniconda.sh
 ENV PATH="/opt/conda/bin:$MAVEN_HOME/bin:${PATH}"
-RUN conda init
-# TODO: re-enable mamba solver after https://github.com/NVIDIA/spark-rapids/issues/9393
-# conda config --set solver libmamba
+RUN conda init && conda install -n base -c conda-forge mamba
 
 # 'pyarrow' and 'pandas' will be installed as the dependencies of cudf below
 RUN export CUDA_VER=`echo ${CUDA_VER} | cut -d '.' -f 1,2` && \
-    conda install -y -c rapidsai -c rapidsai-nightly -c nvidia -c conda-forge -c defaults cudf=${CUDF_VER} python=3.10 cuda-version=${CUDA_VER} && \
-    conda install -y spacy && python -m spacy download en_core_web_sm && \
-    conda install -y -c anaconda pytest requests && \
-    conda install -y -c conda-forge sre_yield && \
-    conda clean -ay
+    mamba install -y -c rapidsai -c rapidsai-nightly -c nvidia -c conda-forge -c defaults \
+        cudf=${CUDF_VER} python=3.10 cuda-version=${CUDA_VER} && \
+    mamba install -y spacy && python -m spacy download en_core_web_sm && \
+    mamba install -y -c anaconda pytest requests && \
+    mamba install -y -c conda-forge sre_yield && \
+    mamba clean -ay
 # install pytest plugins for xdist parallel run
 RUN python -m pip install findspark pytest-xdist pytest-order fastparquet==2024.5.0
 
diff --git a/jenkins/Dockerfile-blossom.integration.ubuntu b/jenkins/Dockerfile-blossom.integration.ubuntu
index b33309881e8..bd9c048a716 100644
--- a/jenkins/Dockerfile-blossom.integration.ubuntu
+++ b/jenkins/Dockerfile-blossom.integration.ubuntu
@@ -57,17 +57,16 @@ RUN wget --quiet https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86
     /bin/bash ~/miniconda.sh -b -p /opt/conda && \
     rm -f ~/miniconda.sh
 ENV PATH="/opt/conda/bin:$MAVEN_HOME/bin:${PATH}"
-RUN conda init
-# TODO: re-enable mamba solver after https://github.com/NVIDIA/spark-rapids/issues/9393
-# conda config --set solver libmamba
+RUN conda init && conda install -n base -c conda-forge mamba
 
 # 'pyarrow' and 'pandas' will be installed as the dependencies of cudf below
 RUN export CUDA_VER=`echo ${CUDA_VER} | cut -d '.' -f 1,2` && \
-    conda install -y -c rapidsai -c rapidsai-nightly -c nvidia -c conda-forge -c defaults cudf=${CUDF_VER} python=3.10 cuda-version=${CUDA_VER} && \
-    conda install -y spacy && python -m spacy download en_core_web_sm && \
-    conda install -y -c anaconda pytest requests && \
-    conda install -y -c conda-forge sre_yield && \
-    conda clean -ay
+    mamba install -y -c rapidsai -c rapidsai-nightly -c nvidia -c conda-forge -c defaults \
+        cudf=${CUDF_VER} python=3.10 cuda-version=${CUDA_VER} && \
+    mamba install -y spacy && python -m spacy download en_core_web_sm && \
+    mamba install -y -c anaconda pytest requests && \
+    mamba install -y -c conda-forge sre_yield && \
+    mamba clean -ay
 # install pytest plugins for xdist parallel run
 RUN python -m pip install findspark pytest-xdist pytest-order fastparquet==2024.5.0