diff --git a/composer.json b/composer.json
index 398e052..6dae99f 100644
--- a/composer.json
+++ b/composer.json
@@ -3,10 +3,10 @@
 	"description": "🔊 Browse, manage and listen to podcasts",
 	"type": "project",
 	"license": "AGPL-3.0-or-later",
-	"version": "1.3.0",
+	"version": "1.4.0",
 	"require-dev": {
 		"nextcloud/ocp": "^28.0.1",
-		"psalm/phar": "^5.19.1",
+		"psalm/phar": "^5.20.0",
 		"nextcloud/coding-standard": "^1.1.1"
 	},
 	"scripts": {
diff --git a/composer.lock b/composer.lock
index 97e124d..a653cf6 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "c2515a98c88eb682439f7c217ed1bb0e",
+    "content-hash": "1ab5db8d7848d8a3ea6bfcb7f909f0d7",
     "packages": [],
     "packages-dev": [
         {
@@ -146,16 +146,16 @@
         },
         {
             "name": "psalm/phar",
-            "version": "5.19.1",
+            "version": "5.20.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/psalm/phar.git",
-                "reference": "c062e477cae7068a4cbcf3dba2a176687c5565a1"
+                "reference": "459eb19aa1cdf405d86d48d9529735facc82a6f4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/psalm/phar/zipball/c062e477cae7068a4cbcf3dba2a176687c5565a1",
-                "reference": "c062e477cae7068a4cbcf3dba2a176687c5565a1",
+                "url": "https://api.github.com/repos/psalm/phar/zipball/459eb19aa1cdf405d86d48d9529735facc82a6f4",
+                "reference": "459eb19aa1cdf405d86d48d9529735facc82a6f4",
                 "shasum": ""
             },
             "require": {
@@ -175,9 +175,9 @@
             "description": "Composer-based Psalm Phar",
             "support": {
                 "issues": "https://github.com/psalm/phar/issues",
-                "source": "https://github.com/psalm/phar/tree/5.19.1"
+                "source": "https://github.com/psalm/phar/tree/5.20.0"
             },
-            "time": "2024-01-17T11:52:12+00:00"
+            "time": "2024-01-18T12:24:24+00:00"
         },
         {
             "name": "psr/clock",
diff --git a/lib/Controller/OpmlController.php b/lib/Controller/OpmlController.php
index a8afd38..80bd840 100644
--- a/lib/Controller/OpmlController.php
+++ b/lib/Controller/OpmlController.php
@@ -62,12 +62,12 @@ class OpmlController extends Controller
 						$title = $podcast->getTitle();
 						$link = $podcast->getLink();
 
-						if ($title) {
+						if (isset($title)) {
 							$outline->addAttribute('text', $title);
 							$outline->addAttribute('title', $title);
 						}
 
-						if ($link) {
+						if (isset($link)) {
 							$outline->addAttribute('htmlUrl', $link);
 						}
 					}
diff --git a/lib/Core/EpisodeAction/EpisodeActionReader.php b/lib/Core/EpisodeAction/EpisodeActionReader.php
index 755b8f1..9388a70 100644
--- a/lib/Core/EpisodeAction/EpisodeActionReader.php
+++ b/lib/Core/EpisodeAction/EpisodeActionReader.php
@@ -57,34 +57,34 @@ class EpisodeActionReader extends CoreEpisodeActionReader
 			// Get episode image
 			$image = $this->stringOrNull($item->image->url);
 
-			if (!$image && $iTunesItemChildren) {
+			if (!isset($image) && isset($iTunesItemChildren)) {
 				$imageAttributes = $iTunesItemChildren->image->attributes();
-				$image = $this->stringOrNull($imageAttributes ? (string) $imageAttributes->href : '');
+				$image = $this->stringOrNull(isset($imageAttributes) ? (string) $imageAttributes->href : '');
 			}
 
-			if (!$image) {
+			if (!isset($image)) {
 				$image = $this->stringOrNull($channel->image->url);
 			}
 
-			if (!$image && $iTunesChannelChildren) {
+			if (!isset($image) && isset($iTunesChannelChildren)) {
 				$imageAttributes = $iTunesChannelChildren->image->attributes();
-				$image = $this->stringOrNull($imageAttributes ? (string) $imageAttributes->href : '');
+				$image = $this->stringOrNull(isset($imageAttributes) ? (string) $imageAttributes->href : '');
 			}
 
-			if (!$image) {
+			if (!isset($image)) {
 				preg_match('/<itunes:image\s+href="([^"]+)"/', $xmlString, $matches);
 				$image = $this->stringOrNull($matches[1]);
 			}
 
 			// Get episode description
 			$itemContent = $item->children('content', true);
-			if ($itemContent) {
+			if (isset($itemContent)) {
 				$description = $this->stringOrNull($itemContent->encoded);
 			} else {
 				$description = $this->stringOrNull($item->description);
 			}
 
-			if (!$description && $iTunesItemChildren) {
+			if (!isset($description) && isset($iTunesItemChildren)) {
 				$description = $this->stringOrNull($iTunesItemChildren->summary);
 			}
 
@@ -92,7 +92,7 @@ class EpisodeActionReader extends CoreEpisodeActionReader
 			$description = strip_tags(str_replace(['<br>', '<br/>', '<br />'], "\n", $description ?? ''));
 
 			// Get episode duration
-			if ($iTunesItemChildren) {
+			if (isset($iTunesItemChildren)) {
 				$duration = $this->stringOrNull($iTunesItemChildren->duration);
 			} else {
 				$duration = $this->stringOrNull($item->duration);
@@ -100,7 +100,7 @@ class EpisodeActionReader extends CoreEpisodeActionReader
 
 			// Get episode pubDate
 			$rawPubDate = $this->stringOrNull($item->pubDate);
-			$pubDate = $rawPubDate ? new \DateTime($rawPubDate) : null;
+			$pubDate = isset($rawPubDate) ? new \DateTime($rawPubDate) : null;
 
 			$episodes[] = new EpisodeActionExtraData(
 				$title,
@@ -126,7 +126,8 @@ class EpisodeActionReader extends CoreEpisodeActionReader
 	 * @param null|\SimpleXMLElement|string $value
 	 */
 	private function stringOrNull($value): ?string {
-		if ($value) {
+		/** @psalm-suppress RiskyTruthyFalsyComparison */
+		if (!empty($value)) {
 			return (string) $value;
 		}
 
diff --git a/lib/Service/SearchProvider.php b/lib/Service/SearchProvider.php
index 50760fc..9718aad 100644
--- a/lib/Service/SearchProvider.php
+++ b/lib/Service/SearchProvider.php
@@ -46,7 +46,7 @@ class SearchProvider implements IProvider
 			$title = $podcast->getTitle();
 			$link = $podcast->getLink();
 
-			if ($title && $link) {
+			if (isset($title, $link)) {
 				$searchResults[] = new SearchResultEntry(
 					$podcast->getImageUrl() ?? $this->urlGenerator->linkTo(Application::APP_ID, 'img/app.svg'),
 					$title,