diff --git a/action/task-def-formation.yml b/action/task-def-formation.yml
index b02ab3d5..e171eca8 100644
--- a/action/task-def-formation.yml
+++ b/action/task-def-formation.yml
@@ -50,19 +50,19 @@ Parameters:
     Default: '/efsdata'
   GithubToken:
     Type: String
-    Default: ''
+    Default: 'Secret'
   UnityLicense:
     Type: String
-    Default: ''
+    Default: 'Secret'
   AndroidKeystoreBase64:
     Type: String
-    Default: ''
+    Default: 'Secret'
   AndroidKeystorePass:
     Type: String
-    Default: ''
+    Default: 'Secret'
   AndroidKeyAliasPass:
     Type: String
-    Default: ''
+    Default: 'Secret'
 Mappings:
   SubnetConfig:
     VPC: