diff --git a/backend/src/main/resources/db/migration/V103__v1.16_release.sql b/backend/src/main/resources/db/migration/V103__v1.16_release.sql
index 89e68a2777..f9c1c49143 100644
--- a/backend/src/main/resources/db/migration/V103__v1.16_release.sql
+++ b/backend/src/main/resources/db/migration/V103__v1.16_release.sql
@@ -76,7 +76,7 @@ CREATE TABLE `issue_comment`
     `status`      varchar(80) DEFAULT NULL,
     PRIMARY KEY (`id`)
 ) ENGINE = InnoDB
-  DEFAULT CHARSET = utf8;
+  DEFAULT CHARSET = utf8mb4 COLLATE = utf8mb4_general_ci;
 
 CREATE TABLE IF NOT EXISTS `api_execution_queue`
 (
diff --git a/backend/src/main/resources/db/migration/V30__test_case_file.sql b/backend/src/main/resources/db/migration/V30__test_case_file.sql
index f4b2c4a3d4..f5d28b5065 100644
--- a/backend/src/main/resources/db/migration/V30__test_case_file.sql
+++ b/backend/src/main/resources/db/migration/V30__test_case_file.sql
@@ -4,4 +4,5 @@ create table if not exists test_case_file
     file_id varchar(64) null,
     constraint test_case_file_unique_key
         unique (case_id, file_id)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8;
+) ENGINE = InnoDB
+    DEFAULT CHARSET = utf8mb4 COLLATE = utf8mb4_general_ci;