diff --git a/src/Plugins/AbstractEddPlugin.php b/src/Plugins/AbstractEddPlugin.php
index cacf139..bb87023 100644
--- a/src/Plugins/AbstractEddPlugin.php
+++ b/src/Plugins/AbstractEddPlugin.php
@@ -19,26 +19,27 @@ abstract class AbstractEddPlugin extends AbstractPlugin {
 	 * Get the download URL for this plugin.
 	 *
 	 * @param  array<string, mixed> $response The EDD API response.
+	 * @throws UnexpectedValueException If the response is invalid or versions do not match.
 	 * @return string
 	 */
 	protected function extractDownloadUrl( array $response ) {
 		if ( empty( $response['download_link'] ) || ! is_string( $response['download_link'] ) ) {
 			throw new UnexpectedValueException( sprintf(
-				'Expected a valid download URL for package %s',
+				'Expected a valid download URL from API for package %s',
 				'junaidbhura/' . $this->slug
 			) );
 		}
 
 		if ( empty( $response['new_version'] ) || ! is_scalar( $response['new_version'] ) ) {
 			throw new UnexpectedValueException( sprintf(
-				'Expected a valid download version number for package %s',
+				'Expected a valid download version number from API for package %s',
 				'junaidbhura/' . $this->slug
 			) );
 		}
 
 		if ( ! Semver::satisfies( $response['new_version'], $this->version ) ) {
 			throw new UnexpectedValueException( sprintf(
-				'Expected download version (%s) to match installed version (%s) of package %s',
+				'Expected download version from API (%s) to match installed version (%s) of package %s',
 				$response['new_version'],
 				$this->version,
 				'junaidbhura/' . $this->slug
diff --git a/src/Plugins/AcfExtendedPro.php b/src/Plugins/AcfExtendedPro.php
index ba7db8c..b95f1f4 100644
--- a/src/Plugins/AcfExtendedPro.php
+++ b/src/Plugins/AcfExtendedPro.php
@@ -8,6 +8,7 @@
 namespace Junaidbhura\Composer\WPProPlugins\Plugins;
 
 use Junaidbhura\Composer\WPProPlugins\Http;
+use UnexpectedValueException;
 
 /**
  * AcfExtendedPro class.
@@ -17,6 +18,7 @@ class AcfExtendedPro extends AbstractEddPlugin {
 	/**
 	 * Get the download URL for this plugin.
 	 *
+	 * @throws UnexpectedValueException If the response is invalid.
 	 * @return string
 	 */
 	public function getDownloadUrl() {
@@ -29,6 +31,13 @@ public function getDownloadUrl() {
 			'version'    => $this->version,
 		) ), true );
 
+		if ( ! is_array( $response ) ) {
+			throw new UnexpectedValueException( sprintf(
+				'Expected a JSON object from API for package %s',
+				'junaidbhura/' . $this->slug
+			) );
+		}
+
 		return $this->extractDownloadUrl( $response );
 	}
 
diff --git a/src/Plugins/GravityForms.php b/src/Plugins/GravityForms.php
index 6c7a271..04a5228 100644
--- a/src/Plugins/GravityForms.php
+++ b/src/Plugins/GravityForms.php
@@ -28,6 +28,7 @@ public function __construct( $version = '', $slug = 'gravityforms' ) {
 	/**
 	 * Get the download URL for this plugin.
 	 *
+	 * @throws UnexpectedValueException If the response is invalid.
 	 * @return string
 	 */
 	public function getDownloadUrl() {
@@ -38,6 +39,13 @@ public function getDownloadUrl() {
 			'key'  => getenv( 'GRAVITY_FORMS_KEY' ),
 		) ) );
 
+		if ( ! is_array( $response ) ) {
+			throw new UnexpectedValueException( sprintf(
+				'Expected a serialized object from API for package %s',
+				'junaidbhura/' . $this->slug
+			) );
+		}
+
 		if ( empty( $response['download_url_latest'] ) || ! is_string( $response['download_url_latest'] ) ) {
 			throw new UnexpectedValueException( sprintf(
 				'Expected a valid download URL for package %s',
diff --git a/src/Plugins/NinjaForms.php b/src/Plugins/NinjaForms.php
index 9dca8bc..666d649 100644
--- a/src/Plugins/NinjaForms.php
+++ b/src/Plugins/NinjaForms.php
@@ -8,6 +8,7 @@
 namespace Junaidbhura\Composer\WPProPlugins\Plugins;
 
 use Junaidbhura\Composer\WPProPlugins\Http;
+use InvalidArgumentException;
 use UnexpectedValueException;
 
 /**
@@ -18,6 +19,8 @@ class NinjaForms extends AbstractEddPlugin {
 	/**
 	 * Get the download URL for this plugin.
 	 *
+	 * @throws InvalidArgumentException If the package is unsupported.
+	 * @throws UnexpectedValueException If the response is invalid.
 	 * @return string
 	 */
 	public function getDownloadUrl() {
@@ -296,7 +299,7 @@ public function getDownloadUrl() {
 				break;
 
 			default:
-				throw new UnexpectedValueException( sprintf(
+				throw new InvalidArgumentException( sprintf(
 					'Could not find a matching package for %s. Check the package spelling and that the package is supported',
 					'junaidbhura/' . $this->slug
 				) );
@@ -319,6 +322,13 @@ public function getDownloadUrl() {
 			'version'    => $this->version,
 		) ), true );
 
+		if ( ! is_array( $response ) ) {
+			throw new UnexpectedValueException( sprintf(
+				'Expected a JSON object from API for package %s',
+				'junaidbhura/' . $this->slug
+			) );
+		}
+
 		return $this->extractDownloadUrl( $response );
 	}
 
diff --git a/src/Plugins/PolylangPro.php b/src/Plugins/PolylangPro.php
index c035da6..7797820 100644
--- a/src/Plugins/PolylangPro.php
+++ b/src/Plugins/PolylangPro.php
@@ -8,6 +8,7 @@
 namespace Junaidbhura\Composer\WPProPlugins\Plugins;
 
 use Junaidbhura\Composer\WPProPlugins\Http;
+use UnexpectedValueException;
 
 /**
  * PolylangPro class.
@@ -17,6 +18,7 @@ class PolylangPro extends AbstractEddPlugin {
 	/**
 	 * Get the download URL for this plugin.
 	 *
+	 * @throws UnexpectedValueException If the response is invalid.
 	 * @return string
 	 */
 	public function getDownloadUrl() {
@@ -29,6 +31,13 @@ public function getDownloadUrl() {
 			'version'    => $this->version,
 		) ), true );
 
+		if ( ! is_array( $response ) ) {
+			throw new UnexpectedValueException( sprintf(
+				'Expected a JSON object from API for package %s',
+				'junaidbhura/' . $this->slug
+			) );
+		}
+
 		return $this->extractDownloadUrl( $response );
 	}
 
diff --git a/src/Plugins/PublishPressPro.php b/src/Plugins/PublishPressPro.php
index 81bd86c..976d89f 100644
--- a/src/Plugins/PublishPressPro.php
+++ b/src/Plugins/PublishPressPro.php
@@ -8,6 +8,7 @@
 namespace Junaidbhura\Composer\WPProPlugins\Plugins;
 
 use Junaidbhura\Composer\WPProPlugins\Http;
+use InvalidArgumentException;
 use UnexpectedValueException;
 
 /**
@@ -28,6 +29,8 @@ public function __construct( $version = '', $slug = 'publishpress-planner-pro' )
 	/**
 	 * Get the download URL for this plugin.
 	 *
+	 * @throws InvalidArgumentException If the package is unsupported.
+	 * @throws UnexpectedValueException If the response is invalid.
 	 * @return string
 	 */
 	public function getDownloadUrl() {
@@ -89,7 +92,7 @@ public function getDownloadUrl() {
 				break;
 
 			default:
-				throw new UnexpectedValueException( sprintf(
+				throw new InvalidArgumentException( sprintf(
 					'Could not find a matching package for %s. Check the package spelling and that the package is supported',
 					'junaidbhura/' . $this->slug
 				) );
@@ -112,6 +115,13 @@ public function getDownloadUrl() {
 			'version'    => $this->version,
 		) ), true );
 
+		if ( ! is_array( $response ) ) {
+			throw new UnexpectedValueException( sprintf(
+				'Expected a JSON object from API for package %s',
+				'junaidbhura/' . $this->slug
+			) );
+		}
+
 		return $this->extractDownloadUrl( $response );
 	}
 
diff --git a/src/Plugins/WpAiPro.php b/src/Plugins/WpAiPro.php
index 6041f56..065275d 100644
--- a/src/Plugins/WpAiPro.php
+++ b/src/Plugins/WpAiPro.php
@@ -8,6 +8,7 @@
 namespace Junaidbhura\Composer\WPProPlugins\Plugins;
 
 use Junaidbhura\Composer\WPProPlugins\Http;
+use UnexpectedValueException;
 
 /**
  * WpAiPro class.
@@ -27,6 +28,7 @@ public function __construct( $version = '', $slug = 'wp-all-import-pro' ) {
 	/**
 	 * Get the download URL for this plugin.
 	 *
+	 * @throws UnexpectedValueException If the response is invalid.
 	 * @return string
 	 */
 	public function getDownloadUrl() {
@@ -84,6 +86,13 @@ public function getDownloadUrl() {
 			'version'    => $this->version,
 		) ), true );
 
+		if ( ! is_array( $response ) ) {
+			throw new UnexpectedValueException( sprintf(
+				'Expected a JSON object from API for package %s',
+				'junaidbhura/' . $this->slug
+			) );
+		}
+
 		return $this->extractDownloadUrl( $response );
 	}
 
diff --git a/src/Plugins/Wpml.php b/src/Plugins/Wpml.php
index 05d815c..78fdc64 100644
--- a/src/Plugins/Wpml.php
+++ b/src/Plugins/Wpml.php
@@ -7,7 +7,7 @@
 
 namespace Junaidbhura\Composer\WPProPlugins\Plugins;
 
-use UnexpectedValueException;
+use InvalidArgumentException;
 
 /**
  * Wpml class.
@@ -27,6 +27,7 @@ public function __construct( $version = '', $slug = 'wpml-sitepress-multilingual
 	/**
 	 * Get the download URL for this plugin.
 	 *
+	 * @throws InvalidArgumentException If the package is unsupported.
 	 * @return string
 	 */
 	public function getDownloadUrl() {
@@ -51,7 +52,7 @@ public function getDownloadUrl() {
 		);
 
 		if ( ! array_key_exists( $this->slug, $packages ) ) {
-			throw new UnexpectedValueException( sprintf(
+			throw new InvalidArgumentException( sprintf(
 				'Could not find a matching package for %s. Check the package spelling and that the package is supported',
 				'junaidbhura/' . $this->slug
 			) );