diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 72e0c58..a2b2d1b 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -126,6 +126,11 @@ jobs:
           catkin-test-args: --no-deps
           build-packages: multi_contact_controller
           test-packages: multi_contact_controller
+      - name: Check python
+        run: |
+          set -e
+          set -x
+          python -c "from distutils import sysconfig; print(sysconfig.get_config_var(\"VERSION\"))"
       - name: Run simulation
         if: env.RUN_SIMULATION_STEPS == 'true'
         # https://github.com/jrl-umi3218/lipm_walking_controller/blob/b564d655388ae6a6725c504e5c74a62192e58c7c/.github/workflows/build.yml#L64-L92
diff --git a/cnoid/project/CMakeLists.txt b/cnoid/project/CMakeLists.txt
index ae77663..ae905fe 100644
--- a/cnoid/project/CMakeLists.txt
+++ b/cnoid/project/CMakeLists.txt
@@ -1,3 +1,25 @@
+if(NOT ${CHOREONOID_USE_PYTHON2})
+  execute_process(
+    COMMAND python3 -c "import sysconfig; print(sysconfig.get_config_var(\"VERSION\"))"
+    OUTPUT_VARIABLE PYTHON_VERSION
+    RESULT_VARIABLE PYTHON_VERSION_SUCCESS
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
+else()
+  execute_process(
+    COMMAND python2 -c "from distutils import sysconfig; print(sysconfig.get_config_var(\"VERSION\"))"
+    OUTPUT_VARIABLE PYTHON_VERSION
+    RESULT_VARIABLE PYTHON_VERSION_SUCCESS
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
+endif()
+if(NOT PYTHON_VERSION_SUCCESS STREQUAL 0)
+  execute_process(
+    COMMAND python -c "from distutils import sysconfig; print(sysconfig.get_config_var(\"VERSION\"))"
+    OUTPUT_VARIABLE PYTHON_VERSION
+    RESULT_VARIABLE PYTHON_VERSION_SUCCESS
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
+endif()
+message("-- Python version detected: ${PYTHON_VERSION}")
+
 set(MCC_CNOID_CONFIG_FILE_LIST
   rtc.conf.choreonoid
   robot.conf
@@ -5,6 +27,7 @@ set(MCC_CNOID_CONFIG_FILE_LIST
   PDcontroller.conf.choreonoid
   PDgains_sim.dat
 )
+
 foreach(CNOID_CONFIG_FILE IN LISTS MCC_CNOID_CONFIG_FILE_LIST)
   execute_process(COMMAND cmake -E create_symlink
     "${HRPSYSBASE_PREFIX}/share/hrpsys/samples/JVRC1/${CNOID_CONFIG_FILE}"
diff --git a/cnoid/project/MCC_JVRC1_SampleField.in.cnoid b/cnoid/project/MCC_JVRC1_SampleField.in.cnoid
index 3cb8874..19cdd5d 100644
--- a/cnoid/project/MCC_JVRC1_SampleField.in.cnoid
+++ b/cnoid/project/MCC_JVRC1_SampleField.in.cnoid
@@ -530,7 +530,7 @@ OpenRTM:
   "deleteUnmanagedRTCsOnStartingSimulation": true
 Python: 
   "moduleSearchPath": 
-    - @HRPSYSBASE_PREFIX@/lib/python2.7/dist-packages/hrpsys
+    - @HRPSYSBASE_PREFIX@/lib/python@PYTHON_VERSION@/dist-packages/hrpsys
 viewAreas: 
   - 
     type: embedded