diff --git a/src/Component/Signature/Serializer/JSONFlattenedSerializer.php b/src/Component/Signature/Serializer/JSONFlattenedSerializer.php
index dcdb9639..c499c294 100644
--- a/src/Component/Signature/Serializer/JSONFlattenedSerializer.php
+++ b/src/Component/Signature/Serializer/JSONFlattenedSerializer.php
@@ -52,7 +52,12 @@ public function serialize(JWS $jws, ?int $signatureIndex = null): string
 
     public function unserialize(string $input): JWS
     {
-        $data = JsonConverter::decode($input);
+        try {
+            $data = JsonConverter::decode($input);
+        }
+        catch(\Exception $e) {
+            throw new InvalidArgumentException($e->getMessage(), $e->getCode(), $e);
+        }
         if (! is_array($data)) {
             throw new InvalidArgumentException('Unsupported input.');
         }
diff --git a/src/Component/Signature/Serializer/JSONGeneralSerializer.php b/src/Component/Signature/Serializer/JSONGeneralSerializer.php
index db4d25cd..a74cfd2e 100644
--- a/src/Component/Signature/Serializer/JSONGeneralSerializer.php
+++ b/src/Component/Signature/Serializer/JSONGeneralSerializer.php
@@ -64,7 +64,12 @@ public function serialize(JWS $jws, ?int $signatureIndex = null): string
 
     public function unserialize(string $input): JWS
     {
-        $data = JsonConverter::decode($input);
+        try {
+            $data = JsonConverter::decode($input);
+        }
+        catch(\Exception $e) {
+            throw new InvalidArgumentException($e->getMessage(), $e->getCode(), $e);
+        }
         if (! is_array($data)) {
             throw new InvalidArgumentException('Unsupported input.');
         }