diff --git a/src/Token.php b/src/Token.php
index e6da9c90..8423c242 100644
--- a/src/Token.php
+++ b/src/Token.php
@@ -361,9 +361,7 @@ public function verify(
         $tokenCacheTtl ??= $this->configuration->getTokenCacheTtl();
         $tokenCache ??= $this->configuration->getTokenCache() ?? null;
 
-        if (null === $tokenJwksUri) {
-            $tokenJwksUri = $this->configuration->formatDomain() . '/.well-known/jwks.json';
-        }
+        $tokenJwksUri ??= $this->configuration->formatDomain() . '/.well-known/jwks.json';
 
         $this->getParser()->verify(
             $tokenAlgorithm,
diff --git a/src/Token/Parser.php b/src/Token/Parser.php
index d5a0d7fe..52c3dbd8 100644
--- a/src/Token/Parser.php
+++ b/src/Token/Parser.php
@@ -224,10 +224,7 @@ public function parse(
 
             // @codeCoverageIgnoreStart
             // This is not currently testable using our JWT encoding test libraries.
-            if (! isset($this->tokenHeaders['typ'])) {
-                $this->tokenHeaders['typ'] = 'JWT';
-            }
-
+            $this->tokenHeaders['typ'] ??= 'JWT';
             // @codeCoverageIgnoreEnd
         }
 
diff --git a/src/Utility/HttpResponsePaginator.php b/src/Utility/HttpResponsePaginator.php
index f8373876..84265d78 100644
--- a/src/Utility/HttpResponsePaginator.php
+++ b/src/Utility/HttpResponsePaginator.php
@@ -328,9 +328,7 @@ private function processLastResponse(): bool
                     throw \Auth0\SDK\Exception\PaginatorException::httpBadResponse();
                 }
 
-                if (null === $start) {
-                    $start = $this->position;
-                }
+                $start ??= $this->position;
 
                 $start = (int) $start;
 
diff --git a/src/Utility/HttpTelemetry.php b/src/Utility/HttpTelemetry.php
index 5341c8c0..ca02d0c3 100644
--- a/src/Utility/HttpTelemetry.php
+++ b/src/Utility/HttpTelemetry.php
@@ -104,9 +104,7 @@ public static function setEnvProperty(
         string $name,
         string $version,
     ): void {
-        if (null === self::$environment) {
-            self::$environment = [];
-        }
+        self::$environment ??= [];
 
         self::$environment[$name] = $version;
     }