diff --git a/src/Symfony/Component/VarDumper/Dumper/ContextProvider/CliContextProvider.php b/src/Symfony/Component/VarDumper/Dumper/ContextProvider/CliContextProvider.php
index 38f878971c53f..292b1a410343d 100644
--- a/src/Symfony/Component/VarDumper/Dumper/ContextProvider/CliContextProvider.php
+++ b/src/Symfony/Component/VarDumper/Dumper/ContextProvider/CliContextProvider.php
@@ -26,7 +26,7 @@ public function getContext(): ?array
 
         return [
             'command_line' => $commandLine = implode(' ', $_SERVER['argv'] ?? []),
-            'identifier' => hash('crc32b', $commandLine.$_SERVER['REQUEST_TIME_FLOAT']),
+            'identifier' => hash('xxh128', $commandLine.'@'.$_SERVER['REQUEST_TIME_FLOAT']),
         ];
     }
 }
diff --git a/src/Symfony/Component/VarDumper/Dumper/ContextProvider/RequestContextProvider.php b/src/Symfony/Component/VarDumper/Dumper/ContextProvider/RequestContextProvider.php
index 69dff067bb6db..341fd323e58c4 100644
--- a/src/Symfony/Component/VarDumper/Dumper/ContextProvider/RequestContextProvider.php
+++ b/src/Symfony/Component/VarDumper/Dumper/ContextProvider/RequestContextProvider.php
@@ -45,7 +45,7 @@ public function getContext(): ?array
             'uri' => $request->getUri(),
             'method' => $request->getMethod(),
             'controller' => $controller ? $this->cloner->cloneVar($controller) : $controller,
-            'identifier' => spl_object_hash($request),
+            'identifier' => hash('xxh128', spl_object_id($request).'@'.$_SERVER['REQUEST_TIME_FLOAT']),
         ];
     }
 }