diff --git a/composer.lock b/composer.lock
index 69bf064f3..d27eac503 100644
--- a/composer.lock
+++ b/composer.lock
@@ -3732,16 +3732,16 @@
         },
         {
             "name": "simplesamlphp/saml2",
-            "version": "v4.16.14",
+            "version": "v4.18.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/simplesamlphp/saml2.git",
-                "reference": "fe6c7bdda5e166e326d19d78f230d959ab51d01d"
+                "reference": "78b1c6735db8e2f78dcea9bcac0317ad2b200d72"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/simplesamlphp/saml2/zipball/fe6c7bdda5e166e326d19d78f230d959ab51d01d",
-                "reference": "fe6c7bdda5e166e326d19d78f230d959ab51d01d",
+                "url": "https://api.github.com/repos/simplesamlphp/saml2/zipball/78b1c6735db8e2f78dcea9bcac0317ad2b200d72",
+                "reference": "78b1c6735db8e2f78dcea9bcac0317ad2b200d72",
                 "shasum": ""
             },
             "require": {
@@ -3787,9 +3787,9 @@
             "description": "SAML2 PHP library from SimpleSAMLphp",
             "support": {
                 "issues": "https://github.com/simplesamlphp/saml2/issues",
-                "source": "https://github.com/simplesamlphp/saml2/tree/v4.16.14"
+                "source": "https://github.com/simplesamlphp/saml2/tree/v4.18.1"
             },
-            "time": "2024-12-01T22:26:30+00:00"
+            "time": "2025-03-16T11:37:44+00:00"
         },
         {
             "name": "stfalcon/tinymce-bundle",