diff --git a/fastdialer/dialer.go b/fastdialer/dialer.go
index 7365846..6559696 100644
--- a/fastdialer/dialer.go
+++ b/fastdialer/dialer.go
@@ -15,6 +15,7 @@ import (
 	"github.com/projectdiscovery/networkpolicy"
 	retryabledns "github.com/projectdiscovery/retryabledns"
 	ztls "github.com/zmap/zcrypto/tls"
+	"golang.org/x/net/idna"
 )
 
 // Dialer structure containing data information
@@ -349,9 +350,13 @@ func (d *Dialer) GetDNSData(hostname string) (*retryabledns.DNSData, error) {
 	)
 	data, err = d.GetDNSDataFromCache(hostname)
 	if err != nil {
-		data, err = d.dnsclient.Resolve(hostname)
+		hostnameAscii, err := idna.ToASCII(hostname)
+		if err != nil {
+			return nil, AsciiConversionError
+		}
+		data, err = d.dnsclient.Resolve(hostnameAscii)
 		if err != nil && d.options.EnableFallback {
-			data, err = d.dnsclient.ResolveWithSyscall(hostname)
+			data, err = d.dnsclient.ResolveWithSyscall(hostnameAscii)
 		}
 		if err != nil {
 			return nil, err
diff --git a/fastdialer/error.go b/fastdialer/error.go
index 5dd0696..8ceb2c9 100644
--- a/fastdialer/error.go
+++ b/fastdialer/error.go
@@ -13,4 +13,5 @@ var (
 	NoTLSHistoryError     = errors.New("no tls data history available")
 	NoTLSDataError        = errors.New("no tls data found for the key")
 	NoDNSDataError        = errors.New("no data found")
+	AsciiConversionError  = errors.New("could not convert hostname to ASCII")
 )
diff --git a/go.mod b/go.mod
index 4d05837..fc16745 100644
--- a/go.mod
+++ b/go.mod
@@ -21,8 +21,7 @@ require (
 	github.com/ulule/deepcopier v0.0.0-20200430083143-45decc6639b6
 	github.com/zmap/zcrypto v0.0.0-20211005224000-2d0ffdec8a9b
 	go.etcd.io/bbolt v1.3.6 // indirect
-	golang.org/x/net v0.0.0-20210916014120-12bc252f5db8 // indirect
-	golang.org/x/sys v0.0.0-20210915083310-ed5796bab164 // indirect
+	golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4 // indirect
 	golang.org/x/text v0.3.7 // indirect
 	google.golang.org/protobuf v1.27.1 // indirect
 )
diff --git a/go.sum b/go.sum
index e754fbc..575634d 100644
--- a/go.sum
+++ b/go.sum
@@ -151,6 +151,8 @@ golang.org/x/net v0.0.0-20210414194228-064579744ee0/go.mod h1:9tjilg8BloeKEkVJvy
 golang.org/x/net v0.0.0-20210521195947-fe42d452be8f/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20210916014120-12bc252f5db8 h1:/6y1LfuqNuQdHAm0jjtPtgRcxIxjVZgm5OTu8/QhZvk=
 golang.org/x/net v0.0.0-20210916014120-12bc252f5db8/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4 h1:HVyaeDAYux4pnY+D/SiwmLOR36ewZ4iGQIIrtnuCjFA=
+golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -175,10 +177,14 @@ golang.org/x/sys v0.0.0-20210303074136-134d130e1a04/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210415045647-66c3f260301c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210915083310-ed5796bab164 h1:7ZDGnxgHAMw7thfC5bEos0RDAccZKxioiWBhfIe+tvw=
 golang.org/x/sys v0.0.0-20210915083310-ed5796bab164/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e h1:fLOSk5Q00efkSvAm+4xcoXD+RRmLmmulPn5I3Y9F2EM=
+golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=