diff --git a/catalogue.json b/catalogue.json
index 6ac0c7e..94cfbf8 100644
--- a/catalogue.json
+++ b/catalogue.json
@@ -179,7 +179,7 @@
     {
         "type": 3,
         "title": "know",
-        "description": "Wiki based on Bookstack",
+        "description": "Wiki based on Wiki.js",
         "repository": {
             "stackfile": "composition/know/docker-compose.yml",
             "url": "https://github.com/MichaelSchmidle/wapps"
@@ -194,25 +194,19 @@
                 "default": "wapps_know",
                 "description": "The name of the database",
                 "label": "Database",
-                "name": "MYSQL_DATABASE"
-            },
-            {
-                "default": "wapps_know",
-                "description": "The password of the root user",
-                "label": "Root password",
-                "name": "MYSQL_ROOT_PASSWORD"
+                "name": "POSTGRES_DB"
             },
             {
                 "default": "wapps_know",
                 "description": "The name of the database user",
                 "label": "Database user",
-                "name": "MYSQL_USER"
+                "name": "POSTGRES_USER"
             },
             {
                 "default": "wapps_know",
                 "description": "The password of the database user",
                 "label": "Database password",
-                "name": "MYSQL_PASSWORD"
+                "name": "POSTGRES_PASSWORD"
             }
         ],
         "name": "know",
diff --git a/composition/know/README.md b/composition/know/README.md
index dcc71f0..ffda2c9 100644
--- a/composition/know/README.md
+++ b/composition/know/README.md
@@ -1,5 +1,5 @@
 # About Know Wapp
 
-The know wapp is based on [Bookstack](https://www.bookstackapp.com/).
+The know wapp is based on [Wiki.js](https://wiki.js.org/).
 
-> BookStack is a simple, self-hosted, easy-to-use platform for organising and storing information.
+> The most powerful and extensible open source Wiki software