diff --git a/Jenkinsfile b/Jenkinsfile
index fe405bf..8bc6bd2 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -12,6 +12,7 @@ pipeline {
             }
             steps {
                 sh 'python -m py_compile sources/add2vals.py sources/calc.py'
+                sh 'python --version'
             }
         }
         stage('Test') {