diff --git a/bitnami/moodle/3/debian-10/docker-compose.yml b/bitnami/moodle/3/debian-10/docker-compose.yml
index 3a475d939cae..ec0c145cd777 100644
--- a/bitnami/moodle/3/debian-10/docker-compose.yml
+++ b/bitnami/moodle/3/debian-10/docker-compose.yml
@@ -6,6 +6,8 @@ services:
       - ALLOW_EMPTY_PASSWORD=yes
       - MARIADB_USER=bn_moodle
       - MARIADB_DATABASE=bitnami_moodle
+      - MARIADB_CHARACTER_SET=utf8mb4
+      - MARIADB_COLLATE=utf8mb4_unicode_ci
     volumes:
       - 'mariadb_data:/bitnami/mariadb'
   moodle:
diff --git a/bitnami/moodle/docker-compose.yml b/bitnami/moodle/docker-compose.yml
index 3a475d939cae..ec0c145cd777 100644
--- a/bitnami/moodle/docker-compose.yml
+++ b/bitnami/moodle/docker-compose.yml
@@ -6,6 +6,8 @@ services:
       - ALLOW_EMPTY_PASSWORD=yes
       - MARIADB_USER=bn_moodle
       - MARIADB_DATABASE=bitnami_moodle
+      - MARIADB_CHARACTER_SET=utf8mb4
+      - MARIADB_COLLATE=utf8mb4_unicode_ci
     volumes:
       - 'mariadb_data:/bitnami/mariadb'
   moodle: