diff --git a/ts/RemoteConfig.ts b/ts/RemoteConfig.ts
index 35cdc1795..81b82d354 100644
--- a/ts/RemoteConfig.ts
+++ b/ts/RemoteConfig.ts
@@ -12,17 +12,18 @@ export type ConfigKeyType =
   | 'desktop.disableGV1'
   | 'desktop.groupCallOutboundRing'
   | 'desktop.internalUser'
-  | 'desktop.messageCleanup'
   | 'desktop.mandatoryProfileSharing'
   | 'desktop.mediaQuality.levels'
+  | 'desktop.messageCleanup'
   | 'desktop.messageRequests'
   | 'desktop.retryReceiptLifespan'
   | 'desktop.retryRespondMaxAge'
-  | 'desktop.senderKey.send'
   | 'desktop.senderKey.retry'
+  | 'desktop.senderKey.send'
+  | 'desktop.senderKeyMaxAge'
   | 'desktop.sendSenderKey3'
-  | 'desktop.showUserBadges2'
   | 'desktop.showUserBadges.beta'
+  | 'desktop.showUserBadges2'
   | 'desktop.usernames'
   | 'global.calling.maxGroupCallRingSize'
   | 'global.groupsv2.groupSizeHardLimit'
diff --git a/ts/util/sendToGroup.ts b/ts/util/sendToGroup.ts
index ae2ef0cd7..9143f1288 100644
--- a/ts/util/sendToGroup.ts
+++ b/ts/util/sendToGroup.ts
@@ -289,7 +289,7 @@ export async function sendToGroupViaSenderKey(options: {
   );
 
   // 1. Add sender key info if we have none, or clear out if it's too old
-  const THIRTY_DAYS = 30 * DAY;
+  const EXPIRE_DURATION = getSenderKeyExpireDuration();
 
   // Note: From here on, generally need to recurse if we change senderKeyInfo
   const senderKeyInfo = sendTarget.getSenderKeyInfo();
@@ -310,7 +310,7 @@ export async function sendToGroupViaSenderKey(options: {
       recursionCount: recursionCount + 1,
     });
   }
-  if (isOlderThan(senderKeyInfo.createdAtDate, THIRTY_DAYS)) {
+  if (isOlderThan(senderKeyInfo.createdAtDate, EXPIRE_DURATION)) {
     const { createdAtDate } = senderKeyInfo;
     log.info(
       `sendToGroupViaSenderKey/${logId}: Resetting sender key; ${createdAtDate} is too old`
@@ -657,6 +657,30 @@ export async function sendToGroupViaSenderKey(options: {
 
 // Utility Methods
 
+const MAX_SENDER_KEY_EXPIRE_DURATION = 90 * DAY;
+
+function getSenderKeyExpireDuration(): number {
+  try {
+    const parsed = parseIntOrThrow(
+      window.Signal.RemoteConfig.getValue('desktop.senderKeyMaxAge'),
+      'getSenderKeyExpireDuration'
+    );
+
+    const duration = Math.min(parsed, MAX_SENDER_KEY_EXPIRE_DURATION);
+    log.info(
+      `getSenderKeyExpireDuration: using expire duration of ${duration}`
+    );
+
+    return duration;
+  } catch (error) {
+    log.warn(
+      `getSenderKeyExpireDuration: Failed to parse integer. Using default of ${MAX_SENDER_KEY_EXPIRE_DURATION}.`,
+      error && error.stack ? error.stack : error
+    );
+    return MAX_SENDER_KEY_EXPIRE_DURATION;
+  }
+}
+
 export function _shouldFailSend(error: unknown, logId: string): boolean {
   const logError = (message: string) => {
     log.error(`_shouldFailSend/${logId}: ${message}`);