diff --git a/src/Sign/JSignParam.php b/src/Sign/JSignParam.php
index f110b2b..0df56cb 100644
--- a/src/Sign/JSignParam.php
+++ b/src/Sign/JSignParam.php
@@ -26,7 +26,7 @@ class JSignParam
      */
     private const CERTIFICATE_PASSWORD_OPTIONS = ['-ksp' => '--keystore-password'];
 
-    private const JSIGNPDF_VERSION = '3.1.0';
+    private const JSIGNPDF_VERSION = '3.2.0';
 
     /** @var array<array-key, string> */
     private const DEFAULT_JSIGN_PARAMETERS = ['-a', '-kst' => 'PKCS12'];
diff --git a/tests/Integration/SignPdfTest.php b/tests/Integration/SignPdfTest.php
index 5944d51..1e0a910 100644
--- a/tests/Integration/SignPdfTest.php
+++ b/tests/Integration/SignPdfTest.php
@@ -66,7 +66,10 @@ public function testSignWithAVisibleSignature(): void
             '--overwrite',
             '-V',
             '-pg' => '1',
-            '-llx' => '50', '-lly' => '50', '-urx' => '300', '-ury' => '150',
+            '-llx' => '50',
+            '-lly' => '50',
+            '-urx' => '300',
+            '-ury' => '150',
         ]);
 
         $signed = JSignPDF::instance($params)->sign();
@@ -86,7 +89,9 @@ public function testSignWithAnExplicitHashAlgorithm(): void
 
     public function testSignAPdfOlderThan16WithTheDefaultParameters(): void
     {
-        $this->expectExceptionMessageMatches('/Creating of signature failed/');
-        JSignPDF::instance($this->params())->sign();
+        $signed = JSignPDF::instance($this->params())->sign();
+
+        $this->assertStringStartsWith('%PDF-', $signed);
+        $this->assertStringContainsString('/ByteRange', $signed);
     }
 }
diff --git a/tests/Sign/JSignParamTest.php b/tests/Sign/JSignParamTest.php
index 255d2ad..cf1b55f 100644
--- a/tests/Sign/JSignParamTest.php
+++ b/tests/Sign/JSignParamTest.php
@@ -9,6 +9,16 @@
 
 class JSignParamTest extends TestCase
 {
+    public function testUsesJSignPdf320AsTheDefaultRuntime(): void
+    {
+        $params = JSignParam::instance();
+
+        $this->assertSame(
+            'https://github.com/intoolswetrust/jsignpdf/releases/download/JSignPdf_3_2_0/jsignpdf-3.2.0-minimal.zip',
+            $params->getJSignPdfDownloadUrl()
+        );
+    }
+
     #[DataProvider('providerValuesThatLookLikeAPasswordOption')]
     public function testKeepsAValueThatLooksLikeAPasswordOptionInTheParameters(string $value): void
     {