diff --git a/lib/database/update.js b/lib/database/update.js
index a871766e..e3574be0 100644
--- a/lib/database/update.js
+++ b/lib/database/update.js
@@ -2,7 +2,7 @@ var db = require("../database");
 var Logger = require("../logger");
 var Q = require("q");
 
-const DB_VERSION = 4;
+const DB_VERSION = 5;
 var hasUpdates = [];
 
 module.exports.checkVersion = function () {
@@ -52,6 +52,8 @@ function update(version, cb) {
                               " into the CyTube process to remove the unused tables.");
             cb();
         })
+    } else if (version < 5) {
+        fixUtf8mb4(cb);
     }
 }
 
@@ -220,3 +222,21 @@ module.exports.deleteOldChannelTables = function (cb) {
         }
     }).done(cb);
 };
+
+function fixUtf8mb4(cb) {
+    var queries = [
+        "ALTER TABLE `users` MODIFY `profile` TEXT CHARACTER SET utf8mb4 NOT NULL",
+        "ALTER TABLE `global_bans` MODIFY `reason` VARCHAR(255) CHARACTER SET utf8mb4 NOT NULL",
+        "ALTER TABLE `channel_libraries` MODIFY `title` VARCHAR(255) CHARACTER SET utf8mb4 NOT NULL",
+        "ALTER TABLE `channel_bans` MODIFY `reason` VARCHAR(255) CHARACTER SET utf8mb4 NOT NULL"
+    ];
+
+    Q.allSettled(queries.map(function (query) {
+        return Q.nfcall(db.query, query);
+    })).then(function () {
+        Logger.syslog.log("Fixed utf8mb4");
+        cb();
+    }).catch(function (e) {
+        Logger.errlog.log("Failed to fix utf8mb4: " + e);
+    });
+};