diff --git a/database/2020_05_29_190810_case_insensitive_forum_search.php b/database/2020_05_29_190810_case_insensitive_forum_search.php
new file mode 100644
index 00000000..2cdca7a8
--- /dev/null
+++ b/database/2020_05_29_190810_case_insensitive_forum_search.php
@@ -0,0 +1,28 @@
+<?php
+namespace Misuzu\DatabaseMigrations\CaseInsensitiveForumSearch;
+
+use PDO;
+
+function migrate_up(PDO $conn): void {
+    $conn->exec("
+        ALTER TABLE `msz_forum_topics`
+            CHANGE COLUMN `topic_title` `topic_title` VARCHAR(255) NOT NULL COLLATE 'utf8mb4_unicode_ci' AFTER `topic_type`;
+    ");
+
+    $conn->exec("
+        ALTER TABLE `msz_forum_posts`
+            CHANGE COLUMN `post_text` `post_text` TEXT(65535) NOT NULL COLLATE 'utf8mb4_unicode_ci' AFTER `post_ip`;
+    ");
+}
+
+function migrate_down(PDO $conn): void {
+    $conn->exec("
+        ALTER TABLE `msz_forum_topics`
+            CHANGE COLUMN `topic_title` `topic_title` VARCHAR(255) NOT NULL COLLATE 'utf8mb4_bin' AFTER `topic_type`;
+    ");
+
+    $conn->exec("
+        ALTER TABLE `msz_forum_posts`
+            CHANGE COLUMN `post_text` `post_text` TEXT(65535) NOT NULL COLLATE 'utf8mb4_bin' AFTER `post_ip`;
+    ");
+}