diff --git a/auto_polling_policy.go b/auto_polling_policy.go
index 3fbe021..09cadf3 100644
--- a/auto_polling_policy.go
+++ b/auto_polling_policy.go
@@ -13,8 +13,7 @@ type autoPollingPolicy struct {
 	initialized      uint32
 	stop             chan struct{}
 	closed           uint32
-	configChanged    func(config string, parser *ConfigParser)
-	parser           *ConfigParser
+	configChanged    func()
 }
 
 // autoPollConfig describes the configuration for auto polling.
@@ -22,7 +21,7 @@ type autoPollConfig struct {
 	// The auto polling interval.
 	autoPollInterval time.Duration
 	// The configuration change listener.
-	changeListener func(config string, parser *ConfigParser)
+	changeListener func()
 }
 
 func (config autoPollConfig) getModeIdentifier() string {
@@ -41,7 +40,7 @@ func AutoPoll(interval time.Duration) RefreshMode {
 // AutoPollWithChangeListener creates an auto polling refresh mode with change listener callback.
 func AutoPollWithChangeListener(
 	interval time.Duration,
-	changeListener func(config string, parser *ConfigParser)) RefreshMode {
+	changeListener func()) RefreshMode {
 	return autoPollConfig{autoPollInterval: interval, changeListener: changeListener}
 }
 
@@ -58,7 +57,6 @@ func newAutoPollingPolicy(
 		initialized:      no,
 		stop:             make(chan struct{}),
 		configChanged:    autoPollConfig.changeListener,
-		parser:           newParser(logger),
 	}
 	policy.startPolling()
 	return policy
@@ -109,7 +107,7 @@ func (policy *autoPollingPolicy) poll() {
 	if response.isFetched() && cached != response.body {
 		policy.store.set(response.body)
 		if policy.configChanged != nil {
-			policy.configChanged(response.body, policy.parser)
+			policy.configChanged()
 		}
 	}
 
diff --git a/auto_polling_policy_test.go b/auto_polling_policy_test.go
index 7b83b62..78706d5 100644
--- a/auto_polling_policy_test.go
+++ b/auto_polling_policy_test.go
@@ -63,7 +63,7 @@ func TestAutoPollingPolicy_GetConfigurationAsync_WithListener(t *testing.T) {
 	fetcher := newFakeConfigProvider()
 	logger := DefaultLogger()
 	fetcher.SetResponse(fetchResponse{status: Fetched, body: "test"})
-	c := make(chan string, 1)
+	c := make(chan bool, 1)
 	defer close(c)
 	policy := newAutoPollingPolicy(
 		fetcher,
@@ -71,13 +71,13 @@ func TestAutoPollingPolicy_GetConfigurationAsync_WithListener(t *testing.T) {
 		logger,
 		AutoPollWithChangeListener(
 			time.Second*2,
-			func(config string, parser *ConfigParser) { c <- config },
+			func() { c <- true },
 		).(autoPollConfig),
 	)
 	defer policy.close()
-	config := <-c
+	called := <-c
 
-	if config != "test" {
+	if !called {
 		t.Error("Expecting test as result")
 	}
 }
diff --git a/version.go b/version.go
index 13bd2ea..a6241c0 100644
--- a/version.go
+++ b/version.go
@@ -1,5 +1,5 @@
 package configcat
 
 const (
-	version = "3.0"
+	version = "3.1"
 )