diff --git a/dnsfilter/dnsfilter.go b/dnsfilter/dnsfilter.go
index b1dcf04a..3ca639a3 100644
--- a/dnsfilter/dnsfilter.go
+++ b/dnsfilter/dnsfilter.go
@@ -25,6 +25,7 @@ import (
 	"golang.org/x/net/publicsuffix"
 )
 
+const defaultCacheSize = 64 * 1024 // in number of elements
 const defaultCacheTime = 30 * time.Minute
 
 const defaultHTTPTimeout = 5 * time.Minute
@@ -67,10 +68,6 @@ type Config struct {
 	SafeBrowsingEnabled bool   `yaml:"safebrowsing_enabled"`
 	ResolverAddress     string // DNS server address
 
-	SafeBrowsingCacheSize int `yaml:"safebrowsing_cache_size"`
-	SafeSearchCacheSize   int `yaml:"safesearch_cache_size"`
-	ParentalCacheSize     int `yaml:"parental_cache_size"`
-
 	Rewrites []RewriteEntry `yaml:"rewrites"`
 
 	// Filtering callback function
@@ -857,13 +854,13 @@ func New(c *Config, filters map[int]string) *Dnsfilter {
 	if c != nil {
 		// initialize objects only once
 		if gctx.safebrowsingCache == nil {
-			gctx.safebrowsingCache = gcache.New(c.SafeBrowsingCacheSize).LRU().Expiration(defaultCacheTime).Build()
+			gctx.safebrowsingCache = gcache.New(defaultCacheSize).LRU().Expiration(defaultCacheTime).Build()
 		}
 		if gctx.safeSearchCache == nil {
-			gctx.safeSearchCache = gcache.New(c.SafeSearchCacheSize).LRU().Expiration(defaultCacheTime).Build()
+			gctx.safeSearchCache = gcache.New(defaultCacheSize).LRU().Expiration(defaultCacheTime).Build()
 		}
 		if gctx.parentalCache == nil {
-			gctx.parentalCache = gcache.New(c.ParentalCacheSize).LRU().Expiration(defaultCacheTime).Build()
+			gctx.parentalCache = gcache.New(defaultCacheSize).LRU().Expiration(defaultCacheTime).Build()
 		}
 		if len(c.ResolverAddress) != 0 && gctx.dialCache == nil {
 			gctx.dialCache = gcache.New(maxDialCacheSize).LRU().Expiration(defaultCacheTime).Build()
diff --git a/home/config.go b/home/config.go
index 85d8498a..fd3460ea 100644
--- a/home/config.go
+++ b/home/config.go
@@ -211,10 +211,6 @@ func initConfig() {
 		// also change the default config
 		config.DNS.UpstreamDNS = defaultDNS
 	}
-
-	config.DNS.SafeBrowsingCacheSize = 64 * 1024
-	config.DNS.SafeSearchCacheSize = 64 * 1024
-	config.DNS.ParentalCacheSize = 64 * 1024
 }
 
 // getConfigFilename returns path to the current config file