diff --git a/package.json b/package.json
index 04bfa10..4166d94 100644
--- a/package.json
+++ b/package.json
@@ -23,11 +23,13 @@
     "@types/jsonwebtoken": "^8.5.5",
     "@types/node": "^16.10.3",
     "@types/nodemailer": "^6.4.4",
+    "@types/redis": "^2.8.32",
     "argon2": "^0.28.2",
     "dotenv": "^10.0.0",
     "express": "^4.17.1",
     "jsonwebtoken": "^8.5.1",
-    "nodemailer": "^6.7.0"
+    "nodemailer": "^6.7.0",
+    "redis": "^3.1.2"
   },
   "devDependencies": {
     "@types/chai": "^4.2.22",
diff --git a/src/Controllers/admin_auth.controller.ts b/src/Controllers/admin_auth.controller.ts
index f4672ea..5fb01fa 100644
--- a/src/Controllers/admin_auth.controller.ts
+++ b/src/Controllers/admin_auth.controller.ts
@@ -1,5 +1,6 @@
 import { Request, Response } from "express";
 import { Admin, AdminLevel, Group } from "@prisma/client";
+import { authClient } from "../lib/redis";
 import prisma from "../lib/prisma";
 import argon2 from "argon2";
 import jwt from "jsonwebtoken";
@@ -55,6 +56,9 @@ export const authenticateUser = async (req: Request<{}, {}, AuthenticateUserBody
   const param_password_hash = await argon2.hash(password, { type: argon2.argon2id });
 
   if (param_password_hash === user.password) {
+    // Set password revision ID in redis
+    await authClient.set(user.pid, user.revision);
+
     return {
       type: "success",
       payload: {
diff --git a/src/lib/redis.ts b/src/lib/redis.ts
new file mode 100644
index 0000000..afe01f5
--- /dev/null
+++ b/src/lib/redis.ts
@@ -0,0 +1,27 @@
+import redis from "redis";
+import { promisify } from "util";
+
+const REDIS_INDICES = {
+  auth: 0,
+};
+
+const REDIS_HOST = process.env.REDIS_HOST || "redis";
+const REDIS_PORT = process.env.REDIS_PORT ? parseInt(process.env.REDIS_PORT) : 6379;
+
+// TODO: Extend
+function createAsyncClient(client: redis.RedisClient) {
+  return {
+    get: promisify(client.get).bind(client),
+    set: promisify(client.set).bind(client),
+  };
+}
+
+// ----------------- //
+// Redis auth client //
+// ----------------- //
+
+const auth = redis.createClient({ host: REDIS_HOST, port: REDIS_PORT });
+
+auth.select(REDIS_INDICES.auth);
+
+export const authClient = createAsyncClient(auth);