diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 1e83015..4f2756c 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -25,7 +25,7 @@ jobs:
       - name: Set up Go 1.x
         uses: actions/setup-go@v2
         with:
-          go-version: ^1.16
+          go-version: ^1.17
 
       - name: Check out code into the Go module directory
         uses: actions/checkout@v2
@@ -46,7 +46,7 @@ jobs:
       - name: Set up Go 1.x
         uses: actions/setup-go@v2
         with:
-          go-version: ^1.16
+          go-version: ^1.17
 
       - name: Check out code into the Go module directory
         uses: actions/checkout@v2
diff --git a/Dockerfile b/Dockerfile
index 7fb768e..96d3378 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/library/golang:1.16 as builder
+FROM docker.io/library/golang:1.17 as builder
 
 WORKDIR /go/src/app
 
diff --git a/go.mod b/go.mod
index 1635608..b91b2b2 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/bakito/adguardhome-sync
 
-go 1.16
+go 1.17
 
 require (
 	github.com/go-resty/resty/v2 v2.7.0
@@ -13,4 +13,26 @@ require (
 	github.com/spf13/cobra v1.3.0
 	github.com/spf13/viper v1.10.1
 	go.uber.org/zap v1.19.1
+	golang.org/x/mod v0.5.0
+)
+
+require (
+	github.com/fsnotify/fsnotify v1.5.1 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/magiconair/properties v1.8.5 // indirect
+	github.com/mitchellh/mapstructure v1.4.3 // indirect
+	github.com/pelletier/go-toml v1.9.4 // indirect
+	github.com/spf13/afero v1.6.0 // indirect
+	github.com/spf13/cast v1.4.1 // indirect
+	github.com/spf13/jwalterweatherman v1.1.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/subosito/gotenv v1.2.0 // indirect
+	go.uber.org/atomic v1.7.0 // indirect
+	go.uber.org/multierr v1.6.0 // indirect
+	golang.org/x/net v0.0.0-20211029224645-99673261e6eb // indirect
+	golang.org/x/sys v0.0.0-20211210111614-af8b64212486 // indirect
+	golang.org/x/text v0.3.7 // indirect
+	gopkg.in/ini.v1 v1.66.2 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
 )
diff --git a/go.sum b/go.sum
index c6ced32..e188bb4 100644
--- a/go.sum
+++ b/go.sum
@@ -436,6 +436,7 @@ golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.5.0 h1:UG21uOlmZabA4fW5i7ZX6bjw1xELEGg/ZLgZq9auk/Q=
 golang.org/x/mod v0.5.0/go.mod h1:5OXOZSfqPIIbmVBIIKWRFfZjPR0E5r58TLhUjH0a2Ro=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
diff --git a/pkg/client/client.go b/pkg/client/client.go
index 79979a9..aa465c8 100644
--- a/pkg/client/client.go
+++ b/pkg/client/client.go
@@ -65,7 +65,7 @@ type Client interface {
 	DeleteRewriteEntries(e ...types.RewriteEntry) error
 
 	Filtering() (*types.FilteringStatus, error)
-	ToggleFiltering(enabled bool, interval int) error
+	ToggleFiltering(enabled bool, interval float64) error
 	AddFilters(whitelist bool, e ...types.Filter) error
 	DeleteFilters(whitelist bool, e ...types.Filter) error
 	UpdateFilters(whitelist bool, e ...types.Filter) error
@@ -88,9 +88,9 @@ type Client interface {
 	DeleteClients(client ...types.Client) error
 
 	QueryLogConfig() (*types.QueryLogConfig, error)
-	SetQueryLogConfig(enabled bool, interval int, anonymizeClientIP bool) error
+	SetQueryLogConfig(enabled bool, interval float64, anonymizeClientIP bool) error
 	StatsConfig() (*types.IntervalConfig, error)
-	SetStatsConfig(interval int) error
+	SetStatsConfig(interval float64) error
 	Setup() error
 
 	AccessList() (*types.AccessList, error)
@@ -291,7 +291,7 @@ func (cl *client) SetCustomRules(rules types.UserRules) error {
 	return cl.doPost(cl.client.R().EnableTrace().SetBody(rules.String()), "/filtering/set_rules")
 }
 
-func (cl *client) ToggleFiltering(enabled bool, interval int) error {
+func (cl *client) ToggleFiltering(enabled bool, interval float64) error {
 	cl.log.With("enabled", enabled, "interval", interval).Info("Toggle filtering")
 	return cl.doPost(cl.client.R().EnableTrace().SetBody(&types.FilteringConfig{
 		EnableConfig:   types.EnableConfig{Enabled: enabled},
@@ -357,7 +357,7 @@ func (cl *client) QueryLogConfig() (*types.QueryLogConfig, error) {
 	return qlc, err
 }
 
-func (cl *client) SetQueryLogConfig(enabled bool, interval int, anonymizeClientIP bool) error {
+func (cl *client) SetQueryLogConfig(enabled bool, interval float64, anonymizeClientIP bool) error {
 	cl.log.With("enabled", enabled, "interval", interval, "anonymizeClientIP", anonymizeClientIP).Info("Set query log config")
 	return cl.doPost(cl.client.R().EnableTrace().SetBody(&types.QueryLogConfig{
 		EnableConfig:      types.EnableConfig{Enabled: enabled},
@@ -372,7 +372,7 @@ func (cl *client) StatsConfig() (*types.IntervalConfig, error) {
 	return stats, err
 }
 
-func (cl *client) SetStatsConfig(interval int) error {
+func (cl *client) SetStatsConfig(interval float64) error {
 	cl.log.With("interval", interval).Info("Set stats config")
 	return cl.doPost(cl.client.R().EnableTrace().SetBody(&types.IntervalConfig{Interval: interval}), "/stats_config")
 }
diff --git a/pkg/client/client_test.go b/pkg/client/client_test.go
index 6deac00..4dfb045 100644
--- a/pkg/client/client_test.go
+++ b/pkg/client/client_test.go
@@ -265,7 +265,7 @@ bar`)
 			qlc, err := cl.QueryLogConfig()
 			Ω(err).ShouldNot(HaveOccurred())
 			Ω(qlc.Enabled).Should(BeTrue())
-			Ω(qlc.Interval).Should(Equal(90))
+			Ω(qlc.Interval).Should(Equal(90.0))
 		})
 		It("should set QueryLogConfig", func() {
 			ts, cl = ClientPost("/querylog_config", `{"enabled":true,"interval":123,"anonymize_client_ip":true}`)
@@ -278,11 +278,11 @@ bar`)
 			ts, cl = ClientGet("stats_info.json", "/stats_info")
 			sc, err := cl.StatsConfig()
 			Ω(err).ShouldNot(HaveOccurred())
-			Ω(sc.Interval).Should(Equal(1))
+			Ω(sc.Interval).Should(Equal(1.0))
 		})
 		It("should set StatsConfig", func() {
 			ts, cl = ClientPost("/stats_config", `{"interval":123}`)
-			err := cl.SetStatsConfig(123)
+			err := cl.SetStatsConfig(123.0)
 			Ω(err).ShouldNot(HaveOccurred())
 		})
 	})
diff --git a/pkg/mocks/client/mock.go b/pkg/mocks/client/mock.go
index 2b958d7..73859f5 100644
--- a/pkg/mocks/client/mock.go
+++ b/pkg/mocks/client/mock.go
@@ -430,7 +430,7 @@ func (mr *MockClientMockRecorder) SetDNSConfig(arg0 interface{}) *gomock.Call {
 }
 
 // SetQueryLogConfig mocks base method.
-func (m *MockClient) SetQueryLogConfig(arg0 bool, arg1 int, arg2 bool) error {
+func (m *MockClient) SetQueryLogConfig(arg0 bool, arg1 float64, arg2 bool) error {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "SetQueryLogConfig", arg0, arg1, arg2)
 	ret0, _ := ret[0].(error)
@@ -458,7 +458,7 @@ func (mr *MockClientMockRecorder) SetServices(arg0 interface{}) *gomock.Call {
 }
 
 // SetStatsConfig mocks base method.
-func (m *MockClient) SetStatsConfig(arg0 int) error {
+func (m *MockClient) SetStatsConfig(arg0 float64) error {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "SetStatsConfig", arg0)
 	ret0, _ := ret[0].(error)
@@ -516,7 +516,7 @@ func (mr *MockClientMockRecorder) Status() *gomock.Call {
 }
 
 // ToggleFiltering mocks base method.
-func (m *MockClient) ToggleFiltering(arg0 bool, arg1 int) error {
+func (m *MockClient) ToggleFiltering(arg0 bool, arg1 float64) error {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "ToggleFiltering", arg0, arg1)
 	ret0, _ := ret[0].(error)
diff --git a/pkg/sync/sync.go b/pkg/sync/sync.go
index dfc9c36..245f5ec 100644
--- a/pkg/sync/sync.go
+++ b/pkg/sync/sync.go
@@ -10,8 +10,11 @@ import (
 	"github.com/bakito/adguardhome-sync/version"
 	"github.com/robfig/cron/v3"
 	"go.uber.org/zap"
+	"golang.org/x/mod/semver"
 )
 
+const minAghVersion = "v0.107.0"
+
 var l = log.GetLogger("sync")
 
 // Sync config from origin to replica
@@ -97,6 +100,11 @@ func (w *worker) sync() {
 		return
 	}
 
+	if semver.Compare(o.status.Version, minAghVersion) == -1 {
+		sl.With("error", err, "version", o.status.Version).Errorf("Origin AdGuard Home version must be >= %s", minAghVersion)
+		return
+	}
+
 	o.parental, err = oc.Parental()
 	if err != nil {
 		sl.With("error", err).Error("Error getting parental status")
@@ -186,6 +194,11 @@ func (w *worker) syncTo(l *zap.SugaredLogger, o *origin, replica types.AdGuardIn
 		return
 	}
 
+	if semver.Compare(rs.Version, minAghVersion) == -1 {
+		rl.With("error", err, "version", rs.Version).Errorf("Replica AdGuard Home version must be >= %s", minAghVersion)
+		return
+	}
+
 	if o.status.Version != rs.Version {
 		rl.With("originVersion", o.status.Version, "replicaVersion", rs.Version).Warn("Versions do not match")
 	}
diff --git a/pkg/sync/sync_test.go b/pkg/sync/sync_test.go
index ab1084e..9576009 100644
--- a/pkg/sync/sync_test.go
+++ b/pkg/sync/sync_test.go
@@ -269,7 +269,7 @@ var _ = Describe("Sync", func() {
 			It("should have QueryLogConfig changes", func() {
 				o.queryLogConfig.Interval = 123
 				cl.EXPECT().QueryLogConfig().Return(qlc, nil)
-				cl.EXPECT().SetQueryLogConfig(false, 123, false)
+				cl.EXPECT().SetQueryLogConfig(false, 123.0, false)
 				cl.EXPECT().StatsConfig().Return(sc, nil)
 				err := w.syncConfigs(o, cl)
 				Ω(err).ShouldNot(HaveOccurred())
@@ -278,7 +278,7 @@ var _ = Describe("Sync", func() {
 				o.statsConfig.Interval = 123
 				cl.EXPECT().QueryLogConfig().Return(qlc, nil)
 				cl.EXPECT().StatsConfig().Return(sc, nil)
-				cl.EXPECT().SetStatsConfig(123)
+				cl.EXPECT().SetStatsConfig(123.0)
 				err := w.syncConfigs(o, cl)
 				Ω(err).ShouldNot(HaveOccurred())
 			})
@@ -425,7 +425,7 @@ var _ = Describe("Sync", func() {
 		})
 
 		Context("sync", func() {
-			It("should have no changes", func() {
+			BeforeEach(func() {
 				w.cfg = &types.Config{
 					Origin:  types.AdGuardInstance{},
 					Replica: types.AdGuardInstance{URL: "foo"},
@@ -447,9 +447,11 @@ var _ = Describe("Sync", func() {
 						QueryLogConfig:  true,
 					},
 				}
+			})
+			It("should have no changes", func() {
 				// origin
 				cl.EXPECT().Host()
-				cl.EXPECT().Status().Return(&types.Status{}, nil)
+				cl.EXPECT().Status().Return(&types.Status{Version: minAghVersion}, nil)
 				cl.EXPECT().Parental()
 				cl.EXPECT().SafeSearch()
 				cl.EXPECT().SafeBrowsing()
@@ -465,7 +467,7 @@ var _ = Describe("Sync", func() {
 
 				// replica
 				cl.EXPECT().Host()
-				cl.EXPECT().Status().Return(&types.Status{}, nil)
+				cl.EXPECT().Status().Return(&types.Status{Version: minAghVersion}, nil)
 				cl.EXPECT().Parental()
 				cl.EXPECT().SafeSearch()
 				cl.EXPECT().SafeBrowsing()
@@ -493,6 +495,34 @@ var _ = Describe("Sync", func() {
 				cl.EXPECT().DeleteDHCPStaticLeases().Return(nil)
 				w.sync()
 			})
+			It("origin version is too small", func() {
+				// origin
+				cl.EXPECT().Host()
+				cl.EXPECT().Status().Return(&types.Status{Version: "v0.106.9"}, nil)
+				w.sync()
+			})
+			It("replica version is too small", func() {
+				// origin
+				cl.EXPECT().Host()
+				cl.EXPECT().Status().Return(&types.Status{Version: minAghVersion}, nil)
+				cl.EXPECT().Parental()
+				cl.EXPECT().SafeSearch()
+				cl.EXPECT().SafeBrowsing()
+				cl.EXPECT().RewriteList().Return(&types.RewriteEntries{}, nil)
+				cl.EXPECT().Services()
+				cl.EXPECT().Filtering().Return(&types.FilteringStatus{}, nil)
+				cl.EXPECT().Clients().Return(&types.Clients{}, nil)
+				cl.EXPECT().QueryLogConfig().Return(&types.QueryLogConfig{}, nil)
+				cl.EXPECT().StatsConfig().Return(&types.IntervalConfig{}, nil)
+				cl.EXPECT().AccessList().Return(&types.AccessList{}, nil)
+				cl.EXPECT().DNSConfig().Return(&types.DNSConfig{}, nil)
+				cl.EXPECT().DHCPServerConfig().Return(&types.DHCPServerConfig{}, nil)
+
+				// replica
+				cl.EXPECT().Host()
+				cl.EXPECT().Status().Return(&types.Status{Version: "v0.106.9"}, nil)
+				w.sync()
+			})
 		})
 	})
 })
diff --git a/pkg/types/types.go b/pkg/types/types.go
index 47bbef4..6ef0383 100644
--- a/pkg/types/types.go
+++ b/pkg/types/types.go
@@ -215,7 +215,7 @@ type EnableConfig struct {
 
 // IntervalConfig API struct
 type IntervalConfig struct {
-	Interval int `json:"interval"`
+	Interval float64 `json:"interval"`
 }
 
 // FilteringConfig API struct