diff --git a/templates/env.j2 b/templates/env.j2
index aec1227..4656e4b 100644
--- a/templates/env.j2
+++ b/templates/env.j2
@@ -84,3 +84,11 @@ ES_PASS={{ es_pass }}
 # Tor
 http_proxy=http://privoxy:8118
 ALLOW_ACCESS_TO_HIDDEN_SERVICE=true
+
+# IP and session retention
+# -----------------------
+# Make sure to modify the scheduling of ip_cleanup_scheduler in config/sidekiq.yml
+# to be less than daily if you lower IP_RETENTION_PERIOD below two days (172800).
+# -----------------------
+IP_RETENTION_PERIOD=31556952
+SESSION_RETENTION_PERIOD=31556952