diff --git a/vars-deployment.json b/vars-deployment.json
index 6db816cd263a3d311ee204bca72c594cab7ca45a..85f61d303b9f91c3396e705d1a5b154119e71dea 100644
--- a/vars-deployment.json
+++ b/vars-deployment.json
@@ -3,7 +3,7 @@
      "name": "ENVIRONMENT",
      "description": "Environment of the deployment, contained in domains, subdomains and resources name convention, should match the project name.",
      "masked": false,
-     "validation_regex_explanation": "Should contain letters and numbers only, between 3 and 20 characters long.",
+     "validation_regex_explanation": "Should contain letters only, between 3 and 20 characters long.",
      "validation_regex": "^[a-zA-Z]{3,30}$" 
     },
     {