diff --git a/inc/driver/cache-driver.php b/inc/Data/Driver/cache-driver.php
similarity index 99%
rename from inc/driver/cache-driver.php
rename to inc/Data/Driver/cache-driver.php
index 672d7b92..b943ee71 100644
--- a/inc/driver/cache-driver.php
+++ b/inc/Data/Driver/cache-driver.php
@@ -1,5 +1,5 @@
 <?php
-namespace Vichan\Driver;
+namespace Vichan\Data\Driver;
 
 use RuntimeException;