diff --git a/lib/Service/Stackiq/ContactPersonHandler.php b/lib/Service/Stackiq/ContactPersonHandler.php
index 1bbd2601..d07ecd80 100644
--- a/lib/Service/Stackiq/ContactPersonHandler.php
+++ b/lib/Service/Stackiq/ContactPersonHandler.php
@@ -787,7 +787,7 @@ private function addUserToGroup(\OCP\IUser $user, string $groupName, string $typ
 				}
 			}
 
-			if ($group !== false && $group->inGroup($user) === false) {
+			if ($group !== null && $group->inGroup($user) === false) {
 				$group->addUser($user);
 				$this->_logger->info(
 					'Added user to group',
@@ -913,7 +913,7 @@ public function updateUserGroupsFromContactData(\OCP\IUser $user, array $contact
 			foreach ($allPossibleRoleGroups as $roleGroup) {
 				if ($roleGroup !== $newRoleGroup) {
 					$group = $this->_groupManager->get($roleGroup);
-					if ($group !== false && $group->inGroup($user) === true) {
+					if ($group !== null && $group->inGroup($user) === true) {
 						$group->removeUser($user);
 						$this->_logger->info(
 							'Removed user from old organization type role group',
@@ -1414,7 +1414,7 @@ public function assignBeheerderRole(object $contactPersonObject, string $usernam
 
 				if (empty($maintainerGroup) === false) {
 					$user = $this->_userManager->get($username);
-					if ($user !== false && $maintainerGroup->inGroup($user) === false) {
+					if ($user !== null && $maintainerGroup->inGroup($user) === false) {
 						$maintainerGroup->addUser($user);
 					}
 				}
diff --git a/lib/Service/Stackiq/OrganizationHandler.php b/lib/Service/Stackiq/OrganizationHandler.php
index 3901015f..af63c2fc 100644
--- a/lib/Service/Stackiq/OrganizationHandler.php
+++ b/lib/Service/Stackiq/OrganizationHandler.php
@@ -699,7 +699,7 @@ function ($a, $b) {
 					$timeA = 0;
 					if ($userA !== null) {
 						$lastLoginA = $userA->getLastLogin();
-						if ($lastLoginA !== 0 && $lastLoginA !== null && $lastLoginA !== false) {
+						if ($lastLoginA !== 0) {
 							$timeA = (int)$lastLoginA;
 						}
 					}
@@ -707,7 +707,7 @@ function ($a, $b) {
 					$timeB = 0;
 					if ($userB !== null) {
 						$lastLoginB = $userB->getLastLogin();
-						if ($lastLoginB !== 0 && $lastLoginB !== null && $lastLoginB !== false) {
+						if ($lastLoginB !== 0) {
 							$timeB = (int)$lastLoginB;
 						}
 					}
diff --git a/lib/Service/StackiqService.php b/lib/Service/StackiqService.php
index 42e4f461..7fa7bcc4 100644
--- a/lib/Service/StackiqService.php
+++ b/lib/Service/StackiqService.php
@@ -2092,7 +2092,7 @@ private function activateUsersForOrganization(string $organizationUuid): void {
 
 				if (empty($username) === false) {
 					$user = $userManager->get($username);
-					if ($user !== false && $user->isEnabled() === false) {
+					if ($user !== null && $user->isEnabled() === false) {
 						$user->setEnabled(true);
 						$activatedCount++;
 
@@ -2184,7 +2184,7 @@ private function deactivateUsersForOrganization(string $organizationUuid): void
 
 				if (empty($username) === false) {
 					$user = $userManager->get($username);
-					if ($user !== false && $user->isEnabled() === true) {
+					if ($user !== null && $user->isEnabled() === true) {
 						$user->setEnabled(false);
 						$deactivatedCount++;
 
@@ -2268,7 +2268,7 @@ private function activateStackiqUsersForOrganization(string $organizationUuid):
 			foreach ($softwareCatalogUsers as $username) {
 				try {
 					$user = $userManager->get($username);
-					if ($user !== false && $user->isEnabled() === false) {
+					if ($user !== null && $user->isEnabled() === false) {
 						$user->setEnabled(true);
 						$activatedUsers[] = $username;
 						$this->_logger->debug(
@@ -2278,7 +2278,7 @@ private function activateStackiqUsersForOrganization(string $organizationUuid):
 								'username' => $username,
 							]
 						);
-					} elseif ($user !== false && $user->isEnabled() === true) {
+					} elseif ($user !== null && $user->isEnabled() === true) {
 						$this->_logger->debug(
 							'StackiqService: Stackiq user already active',
 							[
@@ -2376,7 +2376,7 @@ private function deactivateStackiqUsersForOrganization(string $organizationUuid)
 			foreach ($softwareCatalogUsers as $username) {
 				try {
 					$user = $userManager->get($username);
-					if ($user !== false && $user->isEnabled() === true) {
+					if ($user !== null && $user->isEnabled() === true) {
 						$user->setEnabled(false);
 						$deactivatedUsers[] = $username;
 						$this->_logger->debug(
@@ -2386,7 +2386,7 @@ private function deactivateStackiqUsersForOrganization(string $organizationUuid)
 								'username' => $username,
 							]
 						);
-					} elseif ($user !== false && $user->isEnabled() === false) {
+					} elseif ($user !== null && $user->isEnabled() === false) {
 						$this->_logger->debug(
 							'StackiqService: Stackiq user already inactive',
 							[
diff --git a/package-lock.json b/package-lock.json
index 14afac51..4ef38073 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -88,7 +88,7 @@
         "stylelint-webpack-plugin": "^5.0.1",
         "ts-jest": "^29.2.3",
         "ts-loader": "^9.5.1",
-        "typescript": "^7.0.2",
+        "typescript": "^6.0.3",
         "vitest": "^3.2.7",
         "vue-eslint-parser": "^10.3.0"
       },
@@ -7004,346 +7004,6 @@
         "typescript": ">=4.8.4 <6.1.0"
       }
     },
-    "node_modules/@typescript/typescript-aix-ppc64": {
-      "version": "7.0.2",
-      "resolved": "https://registry.npmjs.org/@typescript/typescript-aix-ppc64/-/typescript-aix-ppc64-7.0.2.tgz",
-      "integrity": "sha512-MTKKkWB7p/0E9xi1d1tHtZ5PiLkGEMIq88pK2CubZjOsLtYTLqhgIgi6zepFa+9GHZ6h05NMCkQxGKiPXMxXtQ==",
-      "cpu": [
-        "ppc64"
-      ],
-      "dev": true,
-      "license": "Apache-2.0",
-      "optional": true,
-      "os": [
-        "aix"
-      ],
-      "engines": {
-        "node": ">=16.20.0"
-      }
-    },
-    "node_modules/@typescript/typescript-darwin-arm64": {
-      "version": "7.0.2",
-      "resolved": "https://registry.npmjs.org/@typescript/typescript-darwin-arm64/-/typescript-darwin-arm64-7.0.2.tgz",
-      "integrity": "sha512-gowzar9MwS/aRWp6f3a4KUqzRjAZjOsmGNCM6LcTgXum+dBfgsBVMN+AgvOCCbguXyick6LJhpBszxMebJ8syA==",
-      "cpu": [
-        "arm64"
-      ],
-      "dev": true,
-      "license": "Apache-2.0",
-      "optional": true,
-      "os": [
-        "darwin"
-      ],
-      "engines": {
-        "node": ">=16.20.0"
-      }
-    },
-    "node_modules/@typescript/typescript-darwin-x64": {
-      "version": "7.0.2",
-      "resolved": "https://registry.npmjs.org/@typescript/typescript-darwin-x64/-/typescript-darwin-x64-7.0.2.tgz",
-      "integrity": "sha512-SZ9xZInqApNlNGc9s0W1VSsktYSOe9cFqNOIqmN1Gs8SmkjKZYFt017G4VwPxASInODuAdbTW7sXiFUf893RgA==",
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-        "x64"
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-      "dev": true,
-      "license": "Apache-2.0",
-      "optional": true,
-      "os": [
-        "darwin"
-      ],
-      "engines": {
-        "node": ">=16.20.0"
-      }
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-    "node_modules/@typescript/typescript-freebsd-arm64": {
-      "version": "7.0.2",
-      "resolved": "https://registry.npmjs.org/@typescript/typescript-freebsd-arm64/-/typescript-freebsd-arm64-7.0.2.tgz",
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-      }
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-    "node_modules/@typescript/typescript-freebsd-x64": {
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-      }
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-    "node_modules/@typescript/typescript-linux-arm": {
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-    "node_modules/@typescript/typescript-linux-loong64": {
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-    "node_modules/@typescript/typescript-linux-riscv64": {
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-      "optional": true,
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-    "node_modules/@typescript/typescript-win32-x64": {
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-      "cpu": [
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-      "optional": true,
-      "os": [
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     "node_modules/@uiw/codemirror-theme-github": {
       "version": "4.25.11",
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@@ -21987,38 +21647,17 @@
       }
     },
     "node_modules/typescript": {
-      "version": "7.0.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-7.0.2.tgz",
-      "integrity": "sha512-8FYau96o3NKOhbjKi/qNvG/W5jhzxkbdm5sj9AbZ/5T5sWqn3hJgLfGx27sRKZWTvyzCP8dLRBTf5tBTSRVUNA==",
+      "version": "6.0.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-6.0.3.tgz",
+      "integrity": "sha512-y2TvuxSZPDyQakkFRPZHKFm+KKVqIisdg9/CZwm9ftvKXLP8NRWj38/ODjNbr43SsoXqNuAisEf1GdCxqWcdBw==",
       "dev": true,
       "license": "Apache-2.0",
       "bin": {
-        "tsc": "bin/tsc"
+        "tsc": "bin/tsc",
+        "tsserver": "bin/tsserver"
       },
       "engines": {
-        "node": ">=16.20.0"
-      },
-      "optionalDependencies": {
-        "@typescript/typescript-aix-ppc64": "7.0.2",
-        "@typescript/typescript-darwin-arm64": "7.0.2",
-        "@typescript/typescript-darwin-x64": "7.0.2",
-        "@typescript/typescript-freebsd-arm64": "7.0.2",
-        "@typescript/typescript-freebsd-x64": "7.0.2",
-        "@typescript/typescript-linux-arm": "7.0.2",
-        "@typescript/typescript-linux-arm64": "7.0.2",
-        "@typescript/typescript-linux-loong64": "7.0.2",
-        "@typescript/typescript-linux-mips64el": "7.0.2",
-        "@typescript/typescript-linux-ppc64": "7.0.2",
-        "@typescript/typescript-linux-riscv64": "7.0.2",
-        "@typescript/typescript-linux-s390x": "7.0.2",
-        "@typescript/typescript-linux-x64": "7.0.2",
-        "@typescript/typescript-netbsd-arm64": "7.0.2",
-        "@typescript/typescript-netbsd-x64": "7.0.2",
-        "@typescript/typescript-openbsd-arm64": "7.0.2",
-        "@typescript/typescript-openbsd-x64": "7.0.2",
-        "@typescript/typescript-sunos-x64": "7.0.2",
-        "@typescript/typescript-win32-arm64": "7.0.2",
-        "@typescript/typescript-win32-x64": "7.0.2"
+        "node": ">=14.17"
       }
     },
     "node_modules/typescript-eslint": {
diff --git a/package.json b/package.json
index 2ef4d44c..57f650fc 100644
--- a/package.json
+++ b/package.json
@@ -127,7 +127,7 @@
     "stylelint-webpack-plugin": "^5.0.1",
     "ts-jest": "^29.2.3",
     "ts-loader": "^9.5.1",
-    "typescript": "^7.0.2",
+    "typescript": "^6.0.3",
     "vitest": "^3.2.7",
     "vue-eslint-parser": "^10.3.0"
   },