diff --git a/scripts/install b/scripts/install
index 4461bc6..33a910e 100644
--- a/scripts/install
+++ b/scripts/install
@@ -22,13 +22,6 @@ echo "$(ynh_app_upstream_version)" > "$install_dir/version_static.txt"
 chmod -R o-rwx "$install_dir"
 chown -R $app:www-data "$install_dir"
 
-#=================================================
-# ALTER DATABASE
-#=================================================
-
-ynh_mysql_connect_as --user=$db_user --password="$db_pwd" --database=$db_name \
-    <<< "ALTER DATABASE $db_name CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;"
-
 #=================================================
 # SYSTEM CONFIGURATION
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index c1cc9b0..51fd702 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -50,13 +50,6 @@ fi
 chmod -R o-rwx "$install_dir"
 chown -R $app:www-data "$install_dir"
 
-#=================================================
-# ALTER DATABASE
-#=================================================
-
-ynh_mysql_connect_as --user=$db_user --password="$db_pwd" --database=$db_name \
-    <<< "ALTER DATABASE $db_name CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;"
-
 #=================================================
 # REAPPLY SYSTEM CONFIGURATIONS
 #=================================================