diff --git a/.env.development b/.env.development
index 1acfaa18..410bd6e5 100644
--- a/.env.development
+++ b/.env.development
@@ -70,9 +70,6 @@ THUMBNAIL_SERVICE_API_BASE_URL="define THUMBNAIL_SERVICE_API_BASE_URL"
 # Feedback
 FEEDBACK_ERROR_URL=https://reftracker.nla.gov.au/reft100.aspx?key=Report_an_error
 
-# Patron Keycloak migration
-PATRON_UPGRADE_URL="define PATRON_UPGRADE_URL"
-
 # 2FA registration
 EMAIL_2FA_REGISTRATION_URL="define EMAIL_2FA_REGISTRATION_URL"
 EMAIL_2FA_REGISTRATION_REDIRECT_URL="define EMAIL_2FA_REGISTRATION_REDIRECT_URL"
diff --git a/.env.staging b/.env.staging
index 9b59fb3c..b1c3b561 100644
--- a/.env.staging
+++ b/.env.staging
@@ -64,9 +64,6 @@ CATALOGUE_SERVICES_REALM="define CATALOGUE_SERVICES_REALM"
 # Thumbnails
 THUMBNAIL_SERVICE_API_BASE_URL="define THUMBNAIL_SERVICE_API_BASE_URL"
 
-# Patron Keycloak migration
-PATRON_UPGRADE_URL="define PATRON_UPGRADE_URL"
-
 # 2FA registration
 EMAIL_2FA_REGISTRATION_URL="define EMAIL_2FA_REGISTRATION_URL"
 EMAIL_2FA_REGISTRATION_REDIRECT_URL="define EMAIL_2FA_REGISTRATION_REDIRECT_URL"
diff --git a/.env.test b/.env.test
index b7f9c75d..14cfac4a 100644
--- a/.env.test
+++ b/.env.test
@@ -47,9 +47,6 @@ THUMBNAIL_SERVICE_API_BASE_URL=http://thumbservices.test
 # Feedback
 FEEDBACK_ERROR_URL=https://reftracker.nla.gov.au/reft100.aspx?key=Report_an_error
 
-# Patron Keycloak migration
-PATRON_UPGRADE_URL=https://test.nla.gov.au/patron/upgrade
-
 # Copyright
 COPYRIGHT_SERVICE_URL=https://test.nla.gov.au/copyright/
 COPYRIGHT_CONTACT_URL=https://test.nla.gov.au/contact-us
diff --git a/README.md b/README.md
index 4b2d4d11..0ef0c51e 100644
--- a/README.md
+++ b/README.md
@@ -148,8 +148,6 @@ These variables are mainly used in the `staging` or `production` environment.
     CATALOGUE_SERVICES_REALM - Catalogue Services realm name
     
     THUMBNAIL_SERVICE_API_BASE_URL - URL to the thumbnail service API base URL
-
-    PATRON_UPGRADE_URL - URL to the Patron Upgrade service
 </details>
 
 ## Setup