diff --git a/scripts/get-expire-time.mjs b/scripts/get-expire-time.mjs
index 8c520ba5b..f23c32e35 100644
--- a/scripts/get-expire-time.mjs
+++ b/scripts/get-expire-time.mjs
@@ -19,7 +19,7 @@ const isNotUpdatable = !parseVersion(packageJson.version).isUpdatable;
 
 // NB: Build expirations are also determined via users' auto-update settings; see
 // getExpirationTimestamp
-const validDuration = isNotUpdatable ? DAY * 30 : DAY * 90;
+const validDuration = DAY * 90;
 const buildExpiration = buildCreation + validDuration;
 
 const localProductionPath = join(
diff --git a/ts/util/buildExpiration.std.ts b/ts/util/buildExpiration.std.ts
index c2ac24c6d..65260f8bd 100644
--- a/ts/util/buildExpiration.std.ts
+++ b/ts/util/buildExpiration.std.ts
@@ -70,9 +70,7 @@ export function hasBuildExpired({
     return true;
   }
 
-  const safeExpirationMs = autoDownloadUpdate
-    ? NINETY_ONE_DAYS
-    : THIRTY_ONE_DAYS;
+  const safeExpirationMs = NINETY_ONE_DAYS;
 
   const buildExpirationDuration = buildExpirationTimestamp - now;
   const tooFarIntoFuture = buildExpirationDuration > safeExpirationMs;