diff --git a/HttpClientTrait.php b/HttpClientTrait.php
index e150e56..51856da 100644
--- a/HttpClientTrait.php
+++ b/HttpClientTrait.php
@@ -343,11 +343,11 @@ private static function jsonEncode($value, int $flags = null, int $maxDepth = 51
         try {
             $value = json_encode($value, $flags | (\PHP_VERSION_ID >= 70300 ? JSON_THROW_ON_ERROR : 0), $maxDepth);
         } catch (\JsonException $e) {
-            throw new InvalidArgumentException(sprintf('Invalid value for "json" option: %s.', $e->getMessage()));
+            throw new InvalidArgumentException('Invalid value for "json" option: '.$e->getMessage());
         }
 
         if (\PHP_VERSION_ID < 70300 && JSON_ERROR_NONE !== json_last_error() && (false === $value || !($flags & JSON_PARTIAL_OUTPUT_ON_ERROR))) {
-            throw new InvalidArgumentException(sprintf('Invalid value for "json" option: %s.', json_last_error_msg()));
+            throw new InvalidArgumentException('Invalid value for "json" option: '.json_last_error_msg());
         }
 
         return $value;
diff --git a/Response/ResponseTrait.php b/Response/ResponseTrait.php
index f49ca68..de4d759 100644
--- a/Response/ResponseTrait.php
+++ b/Response/ResponseTrait.php
@@ -153,11 +153,11 @@ public function toArray(bool $throw = true): array
         try {
             $content = json_decode($content, true, 512, JSON_BIGINT_AS_STRING | (\PHP_VERSION_ID >= 70300 ? JSON_THROW_ON_ERROR : 0));
         } catch (\JsonException $e) {
-            throw new JsonException(sprintf('%s for "%s".', $e->getMessage(), $this->getInfo('url')), $e->getCode());
+            throw new JsonException(sprintf($e->getMessage().' for "%s".', $this->getInfo('url')), $e->getCode());
         }
 
         if (\PHP_VERSION_ID < 70300 && JSON_ERROR_NONE !== json_last_error()) {
-            throw new JsonException(sprintf('%s for "%s".', json_last_error_msg(), $this->getInfo('url')), json_last_error());
+            throw new JsonException(sprintf(json_last_error_msg().' for "%s".', $this->getInfo('url')), json_last_error());
         }
 
         if (!\is_array($content)) {