diff --git a/nesis/api/core/config.py b/nesis/api/core/config.py
index f80a4cc..95108df 100644
--- a/nesis/api/core/config.py
+++ b/nesis/api/core/config.py
@@ -29,7 +29,7 @@
     "memcache": {
         "hosts": [os.environ.get("NESIS_MEMCACHE_HOSTS", "127.0.0.1:11211")],
         "session": {
-            "expiry": os.environ.get("NESIS_API_MEMCACHE_SESSION_EXPIRY") or 1800
+            "expiry": os.environ.get("NESIS_API_MEMCACHE_SESSION_EXPIRY") or 21600
         },
         "cache": {
             "timeout_default": 300,