diff --git a/composer.json b/composer.json
index d570a3c4..5765ee0f 100644
--- a/composer.json
+++ b/composer.json
@@ -1,43 +1,44 @@
 {
-    "name": "nextcloud/tables",
-    "description": "This app is for managing data in tables.",
-    "type": "project",
-    "license": "AGPL",
-    "authors": [
-        {
-            "name": "Florian Steffens",
-            "email": "florian@nextcloud.com"
-        }
-    ],
-    "require-dev": {
-        "nextcloud/coding-standard": "^v1.0.0",
-        "vimeo/psalm": "^5.6.0",
-        "nextcloud/ocp": "dev-master",
-        "phan/phan": "5.x",
-        "staabm/annotate-pull-request-from-checkstyle": "^1.8",
-        "phpunit/phpunit": "^9"
-    },
-    "config": {
-        "optimize-autoloader": true,
-        "classmap-authoritative": true,
-        "platform": {
-            "php": "7.4"
-        }
-    },
-    "scripts": {
-        "test": [
-            "@test:unit"
-        ],
-        "test:unit": "./vendor/bin/phpunit -c tests/unit/phpunit.xml",
-        "lint": "find . -name \\*.php -not -path './vendor/*' -not -path './build/*' -print0 | xargs -0 -n1 php -l",
-        "cs:check": "php-cs-fixer fix --dry-run --diff",
-        "cs:fix": "php-cs-fixer fix",
-        "psalm": "./vendor/bin/psalm --show-info=true --no-cache",
-        "psalm:update-baseline": "./vendor/bin/psalm --update-baseline",
-        "psalm:fix": "./vendor/bin/psalm --no-cache --alter --issues=InvalidReturnType,InvalidNullableReturnType,MismatchingDocblockParamType,MismatchingDocblockReturnType,MissingParamType,InvalidFalsableReturnType",
-        "psalm:fix:dry": "./vendor/bin/psalm --no-cache --alter --issues=InvalidReturnType,InvalidNullableReturnType,MismatchingDocblockParamType,MismatchingDocblockReturnType,MissingParamType,InvalidFalsableReturnType --dry-run"
-    },
-    "require": {
-        "phpoffice/phpspreadsheet": "^1.28"
-    }
+	"name": "nextcloud/tables",
+	"description": "This app is for managing data in tables.",
+	"type": "project",
+	"license": "AGPL",
+	"authors": [
+		{
+			"name": "Florian Steffens",
+			"email": "florian@nextcloud.com"
+		}
+	],
+	"require-dev": {
+		"nextcloud/coding-standard": "^v1.0.0",
+		"vimeo/psalm": "^5.6.0",
+		"nextcloud/ocp": "dev-master",
+		"phan/phan": "5.x",
+		"staabm/annotate-pull-request-from-checkstyle": "^1.8",
+		"phpunit/phpunit": "^9"
+	},
+	"config": {
+		"optimize-autoloader": true,
+		"classmap-authoritative": true,
+		"platform": {
+			"php": "7.4"
+		}
+	},
+	"scripts": {
+		"test": [
+			"@test:unit"
+		],
+		"test:unit": "./vendor/bin/phpunit -c tests/unit/phpunit.xml",
+		"lint": "find . -name \\*.php -not -path './vendor/*' -not -path './build/*' -print0 | xargs -0 -n1 php -l",
+		"cs:check": "php-cs-fixer fix --dry-run --diff",
+		"cs:fix": "php-cs-fixer fix",
+		"psalm": "./vendor/bin/psalm --show-info=true --no-cache",
+		"psalm:update-baseline": "./vendor/bin/psalm --update-baseline",
+		"psalm:fix": "./vendor/bin/psalm --no-cache --alter --issues=InvalidReturnType,InvalidNullableReturnType,MismatchingDocblockParamType,MismatchingDocblockReturnType,MissingParamType,InvalidFalsableReturnType",
+		"psalm:fix:dry": "./vendor/bin/psalm --no-cache --alter --issues=InvalidReturnType,InvalidNullableReturnType,MismatchingDocblockParamType,MismatchingDocblockReturnType,MissingParamType,InvalidFalsableReturnType --dry-run"
+	},
+	"require": {
+		"phpoffice/phpspreadsheet": "^1.28",
+		"ext-json": "*"
+	}
 }
diff --git a/lib/Service/ColumnTypes/SelectionCheckBusiness.php b/lib/Service/ColumnTypes/SelectionCheckBusiness.php
index ca99cd5a..1a2812c4 100644
--- a/lib/Service/ColumnTypes/SelectionCheckBusiness.php
+++ b/lib/Service/ColumnTypes/SelectionCheckBusiness.php
@@ -10,7 +10,6 @@ class SelectionCheckBusiness extends SuperBusiness implements IColumnTypeBusines
 
 	public function parseValue(string $value, ?Column $column = null): string {
 		$found = in_array($value, self::PATTERN_POSITIVE, true);
-		/** @noinspection PhpComposerExtensionStubsInspection */
 		return json_encode($found ? 'true' : 'false');
 	}
 
diff --git a/lib/Service/ColumnTypes/TextLinkBusiness.php b/lib/Service/ColumnTypes/TextLinkBusiness.php
index 8148df13..eac32e92 100644
--- a/lib/Service/ColumnTypes/TextLinkBusiness.php
+++ b/lib/Service/ColumnTypes/TextLinkBusiness.php
@@ -17,12 +17,10 @@ public function parseValue(string $value, ?Column $column = null): string {
 		}
 
 		// if is json
-		/** @noinspection PhpComposerExtensionStubsInspection */
 		$data = json_decode($value, true);
 		if($data !== null) {
 			// at least title and resUrl have to be set
 			if(isset($data['title']) && isset($data['value'])) {
-				/** @noinspection PhpComposerExtensionStubsInspection */
 				return json_encode($value);
 			} else {
 				$this->logger->warning("Link cell value has incomplete json string.");
@@ -35,7 +33,6 @@ public function parseValue(string $value, ?Column $column = null): string {
 		if (empty($matches)) {
 			return '';
 		}
-		/** @noinspection PhpComposerExtensionStubsInspection */
 		return json_encode(json_encode([
 			'title' => $matches[0],
 			'resourceUrl' => $matches[0]
@@ -49,7 +46,6 @@ public function canBeParsed(string $value, ?Column $column = null): bool {
 		}
 
 		// if is json
-		/** @noinspection PhpComposerExtensionStubsInspection */
 		$data = json_decode($value);
 		if($data != null) {
 			return true;
diff --git a/lib/Service/ImportService.php b/lib/Service/ImportService.php
index 5eb64fc6..9cbe2a5c 100644
--- a/lib/Service/ImportService.php
+++ b/lib/Service/ImportService.php
@@ -208,7 +208,6 @@ private function createRow(Row $row): void {
 				continue;
 			}
 
-			/** @noinspection PhpComposerExtensionStubsInspection */
 			$data[] = [
 				'columnId' => (int) $this->columns[$i]->getId(),
 				'value' => json_decode($this->parseValueByColumnType($cell->getValue(), $this->columns[$i])),
diff --git a/lib/Service/RowService.php b/lib/Service/RowService.php
index 41158caf..0c7995af 100644
--- a/lib/Service/RowService.php
+++ b/lib/Service/RowService.php
@@ -219,7 +219,6 @@ private function parseValueByColumnType(string $value, Column $column) {
 				$this->logger->warning('Value '.$value.' could not be parsed for column '.$column->getTitle());
 				return $value;
 			}
-			/** @noinspection PhpComposerExtensionStubsInspection */
 			return json_decode($columnBusiness->parseValue($value, $column));
 		} catch (NotFoundExceptionInterface|ContainerExceptionInterface $e) {
 			$this->logger->debug('Column type business class not found', ['exception' => $e]);