diff --git a/schema/mysql/schema.sql b/schema/mysql/schema.sql
index ed4f76e..acaad28 100644
--- a/schema/mysql/schema.sql
+++ b/schema/mysql/schema.sql
@@ -1,7 +1,7 @@
 CREATE TABLE annotation (
   uuid binary(16) NOT NULL,
   name varchar(63) COLLATE utf8mb4_unicode_ci NOT NULL,
-  value mediumblob COLLATE utf8mb4_unicode_ci NOT NULL,
+  value mediumblob NOT NULL,
   PRIMARY KEY (uuid)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin;