diff --git a/manifests/cf-manifest/env-specific/prod-lon.yml b/manifests/cf-manifest/env-specific/prod-lon.yml
index b2cd71e36d..0cd92c491c 100644
--- a/manifests/cf-manifest/env-specific/prod-lon.yml
+++ b/manifests/cf-manifest/env-specific/prod-lon.yml
@@ -2,7 +2,7 @@
 uaa_instances: 3
 nats_instances: 3
 diego_api_instances: 3
-cell_instances: 75
+cell_instances: 69
 router_instances: 30
 api_instances: 15
 doppler_instances: 39