diff --git a/lbplanner/classes/enums/CAPABILITY.php b/lbplanner/classes/enums/CAPABILITY.php
index cf37d86c..ba345321 100644
--- a/lbplanner/classes/enums/CAPABILITY.php
+++ b/lbplanner/classes/enums/CAPABILITY.php
@@ -34,16 +34,6 @@
  * Capabilities a user can have
  */
 class CAPABILITY extends Enum {
-    /**
-     * Shortname of the admin CAPABILITY.
-     */
-    const ADMIN = 'local/lb_planner:admin';
-
-    /**
-     * Shortname of the manager CAPABILITY.
-     */
-    const MANAGER = 'local/lb_planner:manager';
-
     /**
      * Shortname of the teacher CAPABILITY.
      */
diff --git a/lbplanner/classes/enums/CAPABILITY_FLAG.php b/lbplanner/classes/enums/CAPABILITY_FLAG.php
index 5728405d..73ca0583 100644
--- a/lbplanner/classes/enums/CAPABILITY_FLAG.php
+++ b/lbplanner/classes/enums/CAPABILITY_FLAG.php
@@ -34,16 +34,6 @@
  * Bitmappable flags for capabilities a user can have
  */
 class CAPABILITY_FLAG extends Enum {
-    /**
-     * Flag of the admin CAPABILITY.
-     */
-    const ADMIN = 1;
-
-    /**
-     * Flag of the manager CAPABILITY.
-     */
-    const MANAGER = 2;
-
     /**
      * Flag of the teacher CAPABILITY.
      */
diff --git a/lbplanner/classes/helpers/slot_helper.php b/lbplanner/classes/helpers/slot_helper.php
index 980da3e5..75b60afe 100644
--- a/lbplanner/classes/helpers/slot_helper.php
+++ b/lbplanner/classes/helpers/slot_helper.php
@@ -387,8 +387,7 @@ public static function check_slot_supervisor(int $supervisorid, int $slotid): bo
 
         $context = context_system::instance();
         if (
-            has_capability(CAPABILITY::ADMIN, $context, $supervisorid)
-            || has_capability(CAPABILITY::SLOTMASTER, $context, $supervisorid)
+            has_capability(CAPABILITY::SLOTMASTER, $context, $supervisorid)
         ) {
             return true;
         }
diff --git a/lbplanner/db/access.php b/lbplanner/db/access.php
index c0fa9e87..34eded1c 100644
--- a/lbplanner/db/access.php
+++ b/lbplanner/db/access.php
@@ -36,19 +36,18 @@
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
     ],
-    'local/lb_planner:admin' => [
+    'local/lb_planner:slotmaster' => [
         'riskbitmask' => RISK_SPAM || RISK_PERSONAL,
         'captype' => 'write',
         'contextlevel' => CONTEXT_SYSTEM,
     ],
-    'local/lb_planner:manager' => [
-        'riskbitmask' => RISK_SPAM || RISK_PERSONAL,
-        'captype' => 'write',
-        'contextlevel' => CONTEXT_SYSTEM,
+];
+
+$deprecatedcapabilities = [
+    'local/lb_planner:admin' => [
+        'message' => 'this capability was removed because of internal changes making it unnecessary',
     ],
-    'local/lb_planner:slotmaster' => [
-        'riskbitmask' => RISK_SPAM || RISK_PERSONAL,
-        'captype' => 'write',
-        'contextlevel' => CONTEXT_SYSTEM,
+    'local/lb_planner:manager' => [
+        'message' => 'this capability was removed because of internal changes making it unnecessary',
     ],
 ];