diff --git a/composer.json b/composer.json
index 537cf02c..98a305fb 100644
--- a/composer.json
+++ b/composer.json
@@ -13,5 +13,12 @@
         "drupal/gin": ">3.0.0-rc11",
         "drupal/helfi_platform_config": "<4.3",
         "drupal/helfi_api_base": "<2.7.6"
+    },
+    "extra": {
+        "patches": {
+            "drupal/gin": {
+                "[#UHF-10892] Gin sidebar nextsibling issue. (https://www.drupal.org/i/3460390)": "https://raw.githubusercontent.com/City-of-Helsinki/drupal-hdbt-admin/d3e6cb08315b8df38696489d2c8f406a67f224b8/patches/gin-3460390-sidebar-nextsibling-innerhtml-rc11.patch"
+            }
+        }
     }
 }