diff --git a/config/environments/appliance.rb b/config/environments/appliance.rb
index 5fb4e57f5..00bb200de 100644
--- a/config/environments/appliance.rb
+++ b/config/environments/appliance.rb
@@ -74,7 +74,7 @@
   require Rails.root.join('config', "bioportal_config_#{Rails.env}.rb")
 
   # Use a different cache store in the appliance.
-  config.cache_store = :mem_cache_store, { :namespace => 'bioportal_web_ui', :expires_in => 1.day }
+  config.cache_store = :mem_cache_store, ENV["MEMCACHE_SERVERS"] || "localhost:11211", { :namespace => 'bioportal_web_ui', :expires_in => 1.day }
 
   # Disable serving static files from the `/public` folder by default since
   # Apache or NGINX already handles this.
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 22e595a3d..c03ab3144 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -84,7 +84,7 @@
   require Rails.root.join('config', "bioportal_config_#{Rails.env}.rb")
   
   # Use a different cache store in production.
-  config.cache_store = :mem_cache_store, { namespace: 'bioportal_web_ui', expires_in: 1.day }
+  config.cache_store = :mem_cache_store, ENV["MEMCACHE_SERVERS"] || "localhost:11211", { namespace: 'bioportal_web_ui', expires_in: 1.day }
 
   # Add custom data attributes to sanitize allowed list
   config.action_view.sanitized_allowed_attributes = ['id', 'class', 'style', 'data-cls', 'data-ont']
diff --git a/config/environments/staging.rb b/config/environments/staging.rb
index 287307b75..d99703f49 100644
--- a/config/environments/staging.rb
+++ b/config/environments/staging.rb
@@ -74,7 +74,7 @@
   require Rails.root.join('config', "bioportal_config_#{Rails.env}.rb")
 
   # Use a different cache store in staging.
-  config.cache_store = :mem_cache_store, { namespace: 'bioportal_web_ui', expires_in: 1.day }
+  config.cache_store = :mem_cache_store, ENV["MEMCACHE_SERVERS"] || "localhost:11211", { namespace: 'bioportal_web_ui', expires_in: 1.day }
 
   # Disable serving static files from the `/public` folder by default since
   # Apache or NGINX already handles this.