diff --git a/composer.json b/composer.json
index e9b88a1..3747fd1 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
     "simplesamlphp/composer-module-installer": "^1.0",
     "rlanvin/php-ip": "^1.0",
     "silinternational/ssp-utilities": "v2.0.0",
-    "silinternational/php-env": "^3.1.0",
+    "silinternational/php-env": "^3.2.0",
     "silinternational/psr3-adapters": "v4.0.0",
     "silinternational/yii2-json-log-targets": "^2.0",
     "silinternational/idp-id-broker-php-client": "^4.3",
diff --git a/composer.lock b/composer.lock
index 0029c94..98808c7 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "a4096531caaadf1c30b8c7600e11a4e1",
+    "content-hash": "ae39419f02098a2449c62a732a3c87b9",
     "packages": [
         {
             "name": "aws/aws-crt-php",
@@ -2940,16 +2940,16 @@
         },
         {
             "name": "silinternational/php-env",
-            "version": "3.1.0",
+            "version": "3.2.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/silinternational/php-env.git",
-                "reference": "d69cf17b7fc02cf6450d7d947634d07b7c2168af"
+                "reference": "9a60ee2653d89c1719263122cbb3abbbe7880d1f"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/silinternational/php-env/zipball/d69cf17b7fc02cf6450d7d947634d07b7c2168af",
-                "reference": "d69cf17b7fc02cf6450d7d947634d07b7c2168af",
+                "url": "https://api.github.com/repos/silinternational/php-env/zipball/9a60ee2653d89c1719263122cbb3abbbe7880d1f",
+                "reference": "9a60ee2653d89c1719263122cbb3abbbe7880d1f",
                 "shasum": ""
             },
             "require": {
@@ -2971,9 +2971,9 @@
             "description": "Simple PHP library for getting (or requiring) environment variables, designed to handle true, false, and null more intelligently. If desired, an environment variable's value can be split into an array automatically.",
             "support": {
                 "issues": "https://github.com/silinternational/php-env/issues",
-                "source": "https://github.com/silinternational/php-env/tree/3.1.0"
+                "source": "https://github.com/silinternational/php-env/tree/3.2.0"
             },
-            "time": "2022-08-29T20:48:09+00:00"
+            "time": "2024-07-17T13:16:07+00:00"
         },
         {
             "name": "silinternational/psr3-adapters",
diff --git a/dockerbuild/config/config.php b/dockerbuild/config/config.php
index 05cc948..db551f8 100644
--- a/dockerbuild/config/config.php
+++ b/dockerbuild/config/config.php
@@ -71,7 +71,7 @@
 $PASSWORD_CHANGE_URL = Env::get('PASSWORD_CHANGE_URL');
 $PASSWORD_FORGOT_URL = Env::get('PASSWORD_FORGOT_URL');
 $HELP_CENTER_URL = Env::get('HELP_CENTER_URL');
-$TRUSTED_URL_DOMAINS = Env::getArray('TRUSTED_URL_DOMAINS', []);
+$TRUSTED_URL_DOMAINS = Env::getArray('TRUSTED_URL_DOMAINS', null);
 
 $config = [