diff --git a/striker-ui-api/src/lib/consts/ENV.ts b/striker-ui-api/src/lib/consts/ENV.ts
index 805b4d66..908afb98 100644
--- a/striker-ui-api/src/lib/consts/ENV.ts
+++ b/striker-ui-api/src/lib/consts/ENV.ts
@@ -7,6 +7,14 @@ import { resolveGid, resolveUid } from '../shell';
  */
 export const COOKIE_PREFIX = process.env.COOKIE_PREFIX ?? 'suiapi';
 
+/**
+ * The max lifespan of a session cookie in milliseconds.
+ *
+ * @default 28800000
+ */
+export const COOKIE_ORIGINAL_MAX_AGE =
+  Number(process.env.COOKIE_ORIGINAL_MAX_AGE) || 28800000;
+
 /**
  * The fallback job progress value when queuing jobs.
  *
diff --git a/striker-ui-api/src/middlewares/session.ts b/striker-ui-api/src/middlewares/session.ts
index baac691f..d1242aa4 100644
--- a/striker-ui-api/src/middlewares/session.ts
+++ b/striker-ui-api/src/middlewares/session.ts
@@ -4,15 +4,13 @@ import expressSession, {
   Store as BaseSessionStore,
 } from 'express-session';
 
-import { DELETED } from '../lib/consts';
+import { COOKIE_ORIGINAL_MAX_AGE, DELETED } from '../lib/consts';
 
 import { getLocalHostUUID, query, timestamp, write } from '../lib/accessModule';
 import { cname } from '../lib/cname';
 import { getSessionSecret } from '../lib/getSessionSecret';
 import { stderr, stdout, stdoutVar, uuid } from '../lib/shell';
 
-const DEFAULT_COOKIE_ORIGINAL_MAX_AGE = 28800000; // 8 hours
-
 export class SessionStore extends BaseSessionStore {
   constructor(options = {}) {
     super(options);
@@ -85,7 +83,7 @@ export class SessionStore extends BaseSessionStore {
     const data: SessionData = {
       cookie: {
         maxAge: cookieMaxAge,
-        originalMaxAge: DEFAULT_COOKIE_ORIGINAL_MAX_AGE,
+        originalMaxAge: COOKIE_ORIGINAL_MAX_AGE,
       },
       passport: { user: userUuid },
     };
@@ -169,7 +167,7 @@ export class SessionStore extends BaseSessionStore {
 
   public static calculateCookieMaxAge(
     sessionModifiedDate: string,
-    cookieOriginalMaxAge: number = DEFAULT_COOKIE_ORIGINAL_MAX_AGE,
+    cookieOriginalMaxAge: number = COOKIE_ORIGINAL_MAX_AGE,
   ) {
     const sessionModifiedEpoch = Date.parse(sessionModifiedDate);
     const sessionDeadlineEpoch = sessionModifiedEpoch + cookieOriginalMaxAge;
@@ -185,7 +183,7 @@ export default (async () =>
   expressSession({
     cookie: {
       httpOnly: true,
-      maxAge: DEFAULT_COOKIE_ORIGINAL_MAX_AGE,
+      maxAge: COOKIE_ORIGINAL_MAX_AGE,
       secure: false,
     },
     genid: ({ originalUrl }) => {