diff --git a/checks/pip_check.sh b/checks/pip_check.sh
index 5bf3749..d97c33d 100644
--- a/checks/pip_check.sh
+++ b/checks/pip_check.sh
@@ -46,6 +46,7 @@ if (( ${#missing[@]} )); then
   sentence+='` again.'
   echo '❌ Some packages are missing:'
   echo $sentence
+  exit 1
 else
   echo '✅ Everything is fine, continue the setup instructions.'
 fi
diff --git a/checks/python_checker.sh b/checks/python_checker.sh
index 5279708..c732c15 100644
--- a/checks/python_checker.sh
+++ b/checks/python_checker.sh
@@ -3,4 +3,5 @@ if [[ $my_python_version = *$0* ]];then
   echo "✅ Your Python version OK."
 else
   echo "❌ Your Python version is $my_python_version but it should be $0."
+  exit 1
 fi