diff --git a/src/Schema.php b/src/Schema.php
index 3a29e083..08ea64fe 100644
--- a/src/Schema.php
+++ b/src/Schema.php
@@ -32,7 +32,6 @@
 use function preg_replace;
 use function serialize;
 use function strncasecmp;
-use function strtolower;
 
 /**
  * Implements the SQLite Server specific schema, supporting SQLite 3.3.0 or higher.