diff --git a/oidc-gateway/crds.yml b/oidc-gateway/crds.yml
index 67008c4..256a9a6 100644
--- a/oidc-gateway/crds.yml
+++ b/oidc-gateway/crds.yml
@@ -27,6 +27,8 @@ spec:
               properties:
                 email:
                   type: string
+                companyEmail:
+                  type: string
                 customGroups:
                   type: array
                   items:
@@ -146,7 +148,7 @@ spec:
             spec:
               type: object
               required:
-                - redirectUris # TODO: add validation
+                - redirectUris
                 - grantTypes
                 - responseTypes
               properties:
@@ -158,6 +160,7 @@ spec:
                   type: array
                   items:
                     type: string
+                    pattern: '^(https:\/\/.)[-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,6}\b([-a-zA-Z0-9@:%_\+.~#?&//=]*)$'
                 grantTypes:
                   type: array
                   items: