diff --git a/build.py b/build.py
index 80917c8ae..4443c3a5a 100644
--- a/build.py
+++ b/build.py
@@ -224,6 +224,26 @@ def build_cpp():
     logger.info(f"Generate Symbolic link: {sym_generator}")
     res = subprocess.call(sym_generator, cwd=BUILD_DIR, shell=True)
     check_status(res, "Generate Symbolic link")
+    
+    export_cc = f"export CC=`which mpicc`"
+    logger.info(f"export cc: {export_cc}")
+    res = subprocess.call(export_cc, cwd=BUILD_DIR, shell=True)
+    check_status(res, "Export CC")
+    
+    export_cxx = f"export CXX=`which mpicxx`"
+    logger.info(f"export cxx: {export_cxx}")
+    res = subprocess.call(export_cxx, cwd=BUILD_DIR, shell=True)
+    check_status(res, "Export CXX")
+    
+    export_mpicc = f"export MPI_CC=`which mpicc`"
+    logger.info(f"export mpicc: {export_mpicc}")
+    res = subprocess.call(export_mpicc, cwd=BUILD_DIR, shell=True)
+    check_status(res, "Export MPI_CC")
+    
+    export_mpicxx = f"export MPI_CXX=`which mpicxx`"
+    logger.info(f"export mpicxx: {export_mpicxx}")
+    res = subprocess.call(export_mpicxx, cwd=BUILD_DIR, shell=True)
+    check_status(res, "Export MPI_CXX")
 
     cmake_command = f"cmake -DPYCYLON_BUILD={on_off(BUILD_PYTHON)} {win_cmake_args} " \
                     f"-DCMAKE_BUILD_TYPE={CPP_BUILD_MODE} " \
diff --git a/build.sh b/build.sh
index ed8afc0e2..142989379 100755
--- a/build.sh
+++ b/build.sh
@@ -300,6 +300,11 @@ build_cpp_conda() {
   print_line
   echo "Building Conda CPP in ${BUILD_MODE} mode"
   print_line
+  
+  export CC=`which mpicc`
+  export CXX=`which mpicxx`
+  export MPI_CC=`which mpicc`
+  export MPI_CXX=`which mpicxx`
 
   # set install path to conda directory if not already set
   INSTALL_PATH=${INSTALL_PATH:=${PREFIX:=${CONDA_PREFIX}}}
diff --git a/conda/environments/gcylon.yml b/conda/environments/gcylon.yml
index d3170704c..29a8e3a40 100644
--- a/conda/environments/gcylon.yml
+++ b/conda/environments/gcylon.yml
@@ -3,17 +3,13 @@ channels:
   - rapidsai
   - conda-forge
   - nvidia
-  - nvidia/label/cuda-12.2.0
   - defaults
 dependencies:
-  - python=3.9
   - cudf=24.04
+  - python=3.11
   - cuda-version=12.2
   #- pytorch
-  - cudatoolkit
   - cmake>=3.23.1
-  #- arrow-cpp=14.0.2
-  #- pyarrow=14.0.2
   - cython
   - glog
   - openmpi=4.1.4
@@ -30,3 +26,5 @@ dependencies:
   - gcc=11.4
   - gxx=11.4
   - gxx_linux-64=11.4
+  - cuda-runtime
+  - cudatoolkit