diff --git a/src/Mjml.php b/src/Mjml.php
index 0b2c61a..2b84f5b 100755
--- a/src/Mjml.php
+++ b/src/Mjml.php
@@ -101,7 +101,7 @@ public function workingDirectory(string $workingDirectory): self
     public function canConvert(string $mjml): bool
     {
         try {
-            self::new()->convert($mjml);
+            $this->convert($mjml);
         } catch (CouldNotConvertMjml) {
             return false;
         }
@@ -112,7 +112,7 @@ public function canConvert(string $mjml): bool
     public function canConvertWithoutErrors(string $mjml): bool
     {
         try {
-            $result = self::new()->convert($mjml);
+            $result = $this->convert($mjml);
         } catch (CouldNotConvertMjml) {
             return false;
         }