diff --git a/lib/generators/geocoder/config/templates/initializer.rb b/lib/generators/geocoder/config/templates/initializer.rb
index <HASH>..<HASH> 100644
--- a/lib/generators/geocoder/config/templates/initializer.rb
+++ b/lib/generators/geocoder/config/templates/initializer.rb
@@ -9,8 +9,7 @@ Geocoder.configure(
   # https_proxy: nil,           # HTTPS proxy server (user:pass@host:port)
   # api_key: nil,               # API key for geocoding service
   # cache: nil,                 # cache object (must respond to #[], #[]=, and #del)
-  # cache_prefix: 'geocoder:',  # prefix (string) to use for all cache keys
-  # cache_expiration: 1.day,    # expiration time (ttl)
+  # cache_prefix: 'geocoder:',  # - DEPRECATED - prefix (string) to use for all cache keys
 
   # Exceptions that should not be rescued by default
   # (if you want to implement custom error handling);
@@ -20,4 +19,13 @@ Geocoder.configure(
   # Calculation options
   # units: :mi,                 # :km for kilometers or :mi for miles
   # distances: :linear          # :spherical or :linear
+
+  # Cache service type-specific configurations
+  # cache_options: {}
+
+  # Redis cache configurations (for cache_options):
+  #     {
+  #       expiration: 2.days          # redis ttl for all cache
+  #       prefix: 'geocoder:'         # prefix to add to redis keys, if used cache_prefix will be ignored
+  #     }
 )
Update the docs in the initializer