diff --git a/smdebug_rulesconfig/actions/utils.py b/smdebug_rulesconfig/actions/utils.py
index 055c78e..33e819a 100644
--- a/smdebug_rulesconfig/actions/utils.py
+++ b/smdebug_rulesconfig/actions/utils.py
@@ -2,9 +2,9 @@
 import json
 
 
-TRAINING_JOB_PREFIX_REGEX = "^[A-Za-z0-9\-]+$"
-EMAIL_ADDRESS_REGEX = "^[a-z0-9]+[@]\w+[.]\w{2,3}$"
-PHONE_NUMBER_REGEX = "^\+\d{1,15}$"
+TRAINING_JOB_PREFIX_REGEX = r"^[A-Za-z0-9\-]+$"
+EMAIL_ADDRESS_REGEX = r"^[a-z0-9]+[@]\w+[.]\w{2,3}$"
+PHONE_NUMBER_REGEX = r"^\+\d{1,15}$"
 
 
 def validate_training_job_prefix(key, value):